{"Duration":60,"TotalQuestions":40,"Questions":[{"QuestionId":1,"QuestionFullText":"The fundamental structural and functional unit of life is the","QuestionShortText":"The fundamental structural and functional unit of life","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"cell.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"tissue.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"organ.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"system.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":1}]},{"QuestionId":2,"QuestionFullText":"What is the pair of subatomic particles which attract each other?","QuestionShortText":"What is the pair of subatomic particles which","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"electrons and neutrons","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"electrons and protons","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"protons and neutrons","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"electrons and electrons","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":3,"QuestionFullText":"The unit of momentum is","QuestionShortText":"The unit of momentum is","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"kg m s⁻¹.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"kg m s⁻².","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"kg m⁻¹ s⁻¹.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"kg m² s⁻².","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":1}]},{"QuestionId":4,"QuestionFullText":"The figures A, B and C below indicate three types of muscle tissues.
A, B and C below respectively are","QuestionShortText":"The figures A, B and C below indicate","QuestionImageUrl":"https://live.staticflickr.com/65535/52930239820_82c7e6fe77_o.png","Answers":[{"AnswerId":1,"AnswerText":"smooth muscle, cardiac muscle and skeletal muscle tissues.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"skeletal muscle, smooth muscle and cardiac muscle tissues.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"smooth muscle, skeletal muscle and cardiac muscle tissues.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"cardiac muscle, skeletal muscle and smooth muscle tissues.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":3}]},{"QuestionId":5,"QuestionFullText":"Which of the following is the molecule with highest number of covalent bonds?","QuestionShortText":"Which of the following is the molecule with","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"O₂","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"N₂","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"NH₃","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"CO₂","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]},{"QuestionId":6,"QuestionFullText":"Heat is transmitted from the Sun to the Earth by","QuestionShortText":"Heat is transmitted from the Sun to the","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"radiation.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"conduction.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"convection.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"radiation and convection.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":1}]},{"QuestionId":7,"QuestionFullText":"As was extracted by a student from an environmental pyramid, that ecosystem has one producer, eight primary consumers and twenty three secondary consumers. The student has extracted this information from a","QuestionShortText":"As was extracted by a student from an","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"upright number pyramid.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"inverted number pyramid.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"upright biomass pyramid.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"inverted biomass pyramid.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":8,"QuestionFullText":"Here is shown the displacement-time graph of the motion of an object. During the time intervals from 0 to t₁ and t₁ to t₂, the nature of the motion of the object respectively is,","QuestionShortText":"Here is shown the displacement-time graph of the","QuestionImageUrl":"https://live.staticflickr.com/65535/52929294812_848294f1c2_o.png","Answers":[{"AnswerId":1,"AnswerText":"a uniform velocity and an acceleration.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"a uniform velocity and a retardation.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"a uniform acceleration and a retardation.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"a uniform retardation and an acceleration.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":9,"QuestionFullText":"Question is based on the following information and the illustration. Production of haemoglobin is disturbed by thalassemia, an inherited disease caused by the gene mutation in a somatic chromosome. With regard to the production of haemoglobin naturally, the dominant gene is T while the mutant recessive gene is t. A, B, C and D indicate the F₁ generation.
A thalassemia patient belonging to the F₁ generation is","QuestionShortText":"Question is based on the following information and","QuestionImageUrl":"https://live.staticflickr.com/65535/52930048709_fccd48a63b_o.png","Answers":[{"AnswerId":1,"AnswerText":"A.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"B.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"C.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"D.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]},{"QuestionId":10,"QuestionFullText":"Question is based on the following information and the illustration. Production of haemoglobin is disturbed by thalassemia, an inherited disease caused by the gene mutation in a somatic chromosome. With regard to the production of haemoglobin naturally, the dominant gene is T while the mutant recessive gene is t. A, B, C and D indicate the F₁ generation.
The ratio among the thalassemia patients, healthy disease carriers and healthy individuals belonging to the F₁ generation is","QuestionShortText":"Question is based on the following information and","QuestionImageUrl":"https://live.staticflickr.com/65535/52930048709_fccd48a63b_o.png","Answers":[{"AnswerId":1,"AnswerText":"1 : 1 : 1 .","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"1 : 1 : 2 .","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"1 : 2 : 1 .","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"2 : 1 : 1 .","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":3}]},{"QuestionId":11,"QuestionFullText":"Which statement is always true about the magnitude of displacement of a certain object?","QuestionShortText":"Which statement is always true about the magnitude","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"greater than the distance moved","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"equal to the distance moved","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"lesser than the distance moved","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"either equal to or less than the distance moved","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]},{"QuestionId":12,"QuestionFullText":"The electronic configurations of the atoms of two elements X and Y are 2, 8, 1 and 2, 8, 7 respectively. Of the following statements about the pair of those elements, which statement is false?","QuestionShortText":"The electronic configurations of the atoms of two","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"located in the same period in the Periodic Table","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"located in the same group in the Periodic Table","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"chemically combine forming iconic bonds","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"combine and form the compound with the chemical formula XY","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":13,"QuestionFullText":"What is the number of O₂ molecules contained in 64 g of oxygen gas? ( O = 16 )","QuestionShortText":"What is the number of O₂ molecules contained","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"6.022 x 10²³","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"2 x 6.022 x 10²³","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"4 x 6.022 x 10²³","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"64 x 6.022 x 10²³","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":14,"QuestionFullText":"W, X, Y and Z are four elements consecutively placed in the Periodic Table with atomic numbers below 20. The graph indicates how their first ionisation energy (I₁) varies against the atomic number. In which group of the Periodic Table is Y placed?","QuestionShortText":"W, X, Y and Z are four elements","QuestionImageUrl":"https://live.staticflickr.com/65535/52930307625_de2cf5be77_o.png","Answers":[{"AnswerId":1,"AnswerText":"I","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"II","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"III","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"IV","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":15,"QuestionFullText":"The substances acting as the main components providing energy for the functioning of the human body are","QuestionShortText":"The substances acting as the main components providing","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"proteins and lipids.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"proteins and vitamins.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"carbohydrates and lipids.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"carbohydrates and proteins.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":3}]},{"QuestionId":16,"QuestionFullText":"A person's glucose level in the blood has increased above the optimum level. Which of the following food items should he consume minimally?","QuestionShortText":"A person's glucose level in the blood has","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"meat","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"milk","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"green gram (mung/payaru)","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"bread","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]},{"QuestionId":17,"QuestionFullText":"Select the false statement about nucleic acids.","QuestionShortText":"Select the false statement about nucleic acids.","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"building unit is called nucleotide","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"a natural polymer","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"store hereditory information","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"contain the elements C, H, O and N only","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]},{"QuestionId":18,"QuestionFullText":"Examples for the seeds/fruits dispersed by water, wind and explosive mechanism respectively are","QuestionShortText":"Examples for the seeds/fruits dispersed by water, wind","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"Ceylon almond (kottamba/kaththappu), hora and mango.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"lotus, castor (endaru/amanakku) and rubber.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"coconut, milkweed (vara/erukkalai) and rubber.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"jack, cotton and okra (bandakka/vendi).","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":3}]},{"QuestionId":19,"QuestionFullText":"Which of the following does not pass into the foetus from the mother through the umbilical cord?","QuestionShortText":"Which of the following does not pass into","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"blood","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"nutrients","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"oxygen","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"pathogens","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":1}]},{"QuestionId":20,"QuestionFullText":"What is the ray diagram which illustrates the phenomenon of total internal reflection?","QuestionShortText":"What is the ray diagram which illustrates the","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52929366402_47a910edd1_o.png"},{"AnswerId":2,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52930338645_3bbd6df3e6_o.png"},{"AnswerId":3,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52929959346_4633713a64_o.png"},{"AnswerId":4,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52930340400_dc10d08240_o.png"}],"CorrectAnswers":[{"Id":1}]},{"QuestionId":21,"QuestionFullText":"An athlete finishing a running event suffered from a cramp in his leg. What is the chemical compound which is produced in muscle cells causing the cramp?","QuestionShortText":"An athlete finishing a running event suffered from","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"carbon dioxide","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"ethyl alcohol","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"lactic acid","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"acetic acid","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":3}]},{"QuestionId":22,"QuestionFullText":"A warm-blooded (homoeothermic) animal and a cold-blood (poikilothermic) animal respectively are","QuestionShortText":"A warm-blooded (homoeothermic) animal and a cold-blood (poikilothermic)","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"pigeon and frog.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"bear and rat.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"rat snake and whale.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"crocodile and tortoise.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":1}]},{"QuestionId":23,"QuestionFullText":"Which arrangement can be used to obtain a voltage of 3 V from two dry cells each with an electromotive force of 1.5 V?","QuestionShortText":"Which arrangement can be used to obtain a","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52930120844_746cccb9d2_o.png"},{"AnswerId":2,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52930353945_aca649a558_o.png"},{"AnswerId":3,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52930122604_d05e7c9b8e_o.png"},{"AnswerId":4,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52930355960_2968d55db2_o.png"}],"CorrectAnswers":[{"Id":3}]},{"QuestionId":24,"QuestionFullText":"What is the metal that reacts with hot water but not with cold water?","QuestionShortText":"What is the metal that reacts with hot","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"sodium","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"magnesium","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"aluminium","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"calcium","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":25,"QuestionFullText":"What is the correct statement about the Covid-19 virus?","QuestionShortText":"What is the correct statement about the Covid-19","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"can be observed by the optical microscope","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"carries out metabolic activities","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"bears a nucleus with DNA","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"shows living as well as non-living characteristics","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]},{"QuestionId":26,"QuestionFullText":"When salt is extracted from sea water in a saltern, what is the compound that precipitates along with NaCl?","QuestionShortText":"When salt is extracted from sea water in","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"Na₂SO₄","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"MgCl₂","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"CaCO₃","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"CaSO₄","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":27,"QuestionFullText":"The maximum upthrust exerted by water on a certain object is less than the weight of the object. Then, the object will","QuestionShortText":"The maximum upthrust exerted by water on a","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"float on the water surface.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"float partly immersed in water.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"float fully immersed in water.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"sink fully in water.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]},{"QuestionId":28,"QuestionFullText":"What is the part common to the human digestive system and the human respiratory system?","QuestionShortText":"What is the part common to the human","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"mouth","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"oesophagus","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"pharynx","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"larynx","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":3}]},{"QuestionId":29,"QuestionFullText":"The figure shows how a couple of forces is applied to rotate a wheel of 0.4 m radius. How much is the moment of this couple?","QuestionShortText":"The figure shows how a couple of forces","QuestionImageUrl":"https://live.staticflickr.com/65535/52930450323_8f6aaf9cef_o.png","Answers":[{"AnswerId":1,"AnswerText":"5 x 0.4 Nm","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"5 x 0.8 Nm","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"5 x 5 x 0.4 Nm","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"5 x 5 x 0.8 Nm","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":30,"QuestionFullText":"What is the mole fraction of O₂ in a mixture containing 96 g of oxygen gas (O₂) and 56 g of oxygen gas (O₂) and 56 g of nitrogen gas (N₂)?
(N = 14, O = 16)","QuestionShortText":"What is the mole fraction of O₂ in","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"⅕","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"⅖","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"⅗","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"⅘","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":3}]},{"QuestionId":31,"QuestionFullText":"Given below are four ways by which zinc metal and hydrochloric acid were reacted at room temperature. In which way is hydrogen gas liberated with the highest speed?","QuestionShortText":"Given below are four ways by which zinc","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"zinc granules + dilute hydrochloric","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"zinc granules + concentrated hydrochloric","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"zinc powder + dilute hydrochloric","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"zinc powder + concentrated hydrochloric","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]},{"QuestionId":32,"QuestionFullText":"Between a strong acid and a strong base,","QuestionShortText":"Between a strong acid and a strong base,","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"an exothermic neutralization reaction occurs.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"an endothermic neutralization reaction occurs.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"an exothermic combination reaction occurs.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"an endothermic combination reaction occurs.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":1}]},{"QuestionId":33,"QuestionFullText":"A conductor carrying an electric current 'I', is kept perpendicular to a magnetic field as shown in the diagram. Horizontal lines indicate the direction of the magnetic field. The direction of the force acting on the conductor is","QuestionShortText":"A conductor carrying an electric current 'I', is","QuestionImageUrl":"https://live.staticflickr.com/65535/52930043831_cbe0256770_o.png","Answers":[{"AnswerId":1,"AnswerText":"toward the left on the plane of the paper.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"toward the right on the plane of the paper.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"into the plane of the paper perpendicular to the plane.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"out of the plane of the paper perpendicular to the plane.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":3}]},{"QuestionId":34,"QuestionFullText":"Under normal atmosphere pressure, a pure block of ice at temperature -10⁰C was heated at a uniform rate until it was turned into liquid water and then for some time after the water started to boil. Which graph correctly indicates the variation of the temperature of the system with time?","QuestionShortText":"Under normal atmosphere pressure, a pure block of","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52929463022_d43320e0a1_o.png"},{"AnswerId":2,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52930435745_a65f570472_o.png"},{"AnswerId":3,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52930203769_37014a4f96_o.png"},{"AnswerId":4,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52930058286_d5b8038dc5_o.png"}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":35,"QuestionFullText":"Consider the following statements presented regarding natural rubber.
A - It is a linear polymer
B - Isoprene is the monomer
C - There are cross links among the chains
Of these statements","QuestionShortText":"Consider the following statements presented regarding natural rubber.","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"only A is true.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"only A and B are true.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"only B and C are true.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"only A and C are true.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":36,"QuestionFullText":"Corrosion of iron can be controlled by keeping iron in contact with the bivalent metal M. What is the half reaction to which the metal M is subjected here?","QuestionShortText":"Corrosion of iron can be controlled by keeping","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"M(s) ⟶ M²⁺ (aq) + 2e","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"M²⁺ (aq) ⟶ M(s) + 2e","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"M²⁺ (aq) + 2e ⟶ M(s)","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"M(s) ⟶ M⁺ (aq) + e","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":1}]},{"QuestionId":37,"QuestionFullText":"A 4 N force and a 3 N force are applied on an object at the same instance. Consider the following statements given about the magnitude of the resultant obtainable at that occasion.
A - The maximum magnitude of the resultant obtainable is 7 N.
B - The minimum magnitude of the resultant obtainable is 1 N.
C - The magnitude of the resultant obtainable is always 5 N.
Of the above, the correct statement(s) is / are","QuestionShortText":"A 4 N force and a 3 N","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"only A.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"only B.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"only C.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"only A and B.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]},{"QuestionId":38,"QuestionFullText":"A strong bar magnet is moved into and away from an insulated wire coil with a large number of turns as illustrated by the diagram. What is the correct observation about the instances of movement of the magnet?","QuestionShortText":"A strong bar magnet is moved into and","QuestionImageUrl":"https://live.staticflickr.com/65535/52929508617_02f6032a63_o.png","Answers":[{"AnswerId":1,"AnswerText":"In both instances, both the bulb and two LEDs light simultaneously.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"In both instances, the bulb lights and only one LED lights.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"The bulb and one LED light only when moved into the coil.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"The bulb and one LED light only when moved away from the coil.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":39,"QuestionFullText":"Consider the following statements.
A - Biomagnification occurs along a food chain.
B - Toxic chemical pollutants concentrate more in the upper trophic levels of a food chain.
Of the above statements,","QuestionShortText":"Consider the following statements. A - Biomagnification","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"both A and B are true.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"A is true while B is false.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"A is false while B is true.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"both A and B are false.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":1}]},{"QuestionId":40,"QuestionFullText":"A statement displayed on a board near a tank is shown in the figure. Which of the following human activities in connection with the tank would have contributed most to the change mentioned on the board?","QuestionShortText":"A statement displayed on a board near a","QuestionImageUrl":"https://live.staticflickr.com/65535/52930506070_1b064bd520_o.png","Answers":[{"AnswerId":1,"AnswerText":"clearing the area above the tank","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"increase in algae population due to fishing","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"accumulation of oil and grease due to vehicle wash","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"addition of faecal and excretory matter to the water","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]}]}
A, B and C below respectively are","QuestionShortText":"The figures A, B and C below indicate","QuestionImageUrl":"https://live.staticflickr.com/65535/52930239820_82c7e6fe77_o.png","Answers":[{"AnswerId":1,"AnswerText":"smooth muscle, cardiac muscle and skeletal muscle tissues.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"skeletal muscle, smooth muscle and cardiac muscle tissues.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"smooth muscle, skeletal muscle and cardiac muscle tissues.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"cardiac muscle, skeletal muscle and smooth muscle tissues.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":3}]},{"QuestionId":5,"QuestionFullText":"Which of the following is the molecule with highest number of covalent bonds?","QuestionShortText":"Which of the following is the molecule with","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"O₂","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"N₂","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"NH₃","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"CO₂","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]},{"QuestionId":6,"QuestionFullText":"Heat is transmitted from the Sun to the Earth by","QuestionShortText":"Heat is transmitted from the Sun to the","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"radiation.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"conduction.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"convection.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"radiation and convection.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":1}]},{"QuestionId":7,"QuestionFullText":"As was extracted by a student from an environmental pyramid, that ecosystem has one producer, eight primary consumers and twenty three secondary consumers. The student has extracted this information from a","QuestionShortText":"As was extracted by a student from an","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"upright number pyramid.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"inverted number pyramid.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"upright biomass pyramid.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"inverted biomass pyramid.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":8,"QuestionFullText":"Here is shown the displacement-time graph of the motion of an object. During the time intervals from 0 to t₁ and t₁ to t₂, the nature of the motion of the object respectively is,","QuestionShortText":"Here is shown the displacement-time graph of the","QuestionImageUrl":"https://live.staticflickr.com/65535/52929294812_848294f1c2_o.png","Answers":[{"AnswerId":1,"AnswerText":"a uniform velocity and an acceleration.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"a uniform velocity and a retardation.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"a uniform acceleration and a retardation.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"a uniform retardation and an acceleration.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":9,"QuestionFullText":"Question is based on the following information and the illustration. Production of haemoglobin is disturbed by thalassemia, an inherited disease caused by the gene mutation in a somatic chromosome. With regard to the production of haemoglobin naturally, the dominant gene is T while the mutant recessive gene is t. A, B, C and D indicate the F₁ generation.
A thalassemia patient belonging to the F₁ generation is","QuestionShortText":"Question is based on the following information and","QuestionImageUrl":"https://live.staticflickr.com/65535/52930048709_fccd48a63b_o.png","Answers":[{"AnswerId":1,"AnswerText":"A.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"B.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"C.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"D.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]},{"QuestionId":10,"QuestionFullText":"Question is based on the following information and the illustration. Production of haemoglobin is disturbed by thalassemia, an inherited disease caused by the gene mutation in a somatic chromosome. With regard to the production of haemoglobin naturally, the dominant gene is T while the mutant recessive gene is t. A, B, C and D indicate the F₁ generation.
The ratio among the thalassemia patients, healthy disease carriers and healthy individuals belonging to the F₁ generation is","QuestionShortText":"Question is based on the following information and","QuestionImageUrl":"https://live.staticflickr.com/65535/52930048709_fccd48a63b_o.png","Answers":[{"AnswerId":1,"AnswerText":"1 : 1 : 1 .","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"1 : 1 : 2 .","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"1 : 2 : 1 .","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"2 : 1 : 1 .","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":3}]},{"QuestionId":11,"QuestionFullText":"Which statement is always true about the magnitude of displacement of a certain object?","QuestionShortText":"Which statement is always true about the magnitude","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"greater than the distance moved","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"equal to the distance moved","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"lesser than the distance moved","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"either equal to or less than the distance moved","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]},{"QuestionId":12,"QuestionFullText":"The electronic configurations of the atoms of two elements X and Y are 2, 8, 1 and 2, 8, 7 respectively. Of the following statements about the pair of those elements, which statement is false?","QuestionShortText":"The electronic configurations of the atoms of two","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"located in the same period in the Periodic Table","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"located in the same group in the Periodic Table","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"chemically combine forming iconic bonds","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"combine and form the compound with the chemical formula XY","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":13,"QuestionFullText":"What is the number of O₂ molecules contained in 64 g of oxygen gas? ( O = 16 )","QuestionShortText":"What is the number of O₂ molecules contained","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"6.022 x 10²³","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"2 x 6.022 x 10²³","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"4 x 6.022 x 10²³","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"64 x 6.022 x 10²³","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":14,"QuestionFullText":"W, X, Y and Z are four elements consecutively placed in the Periodic Table with atomic numbers below 20. The graph indicates how their first ionisation energy (I₁) varies against the atomic number. In which group of the Periodic Table is Y placed?","QuestionShortText":"W, X, Y and Z are four elements","QuestionImageUrl":"https://live.staticflickr.com/65535/52930307625_de2cf5be77_o.png","Answers":[{"AnswerId":1,"AnswerText":"I","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"II","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"III","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"IV","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":15,"QuestionFullText":"The substances acting as the main components providing energy for the functioning of the human body are","QuestionShortText":"The substances acting as the main components providing","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"proteins and lipids.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"proteins and vitamins.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"carbohydrates and lipids.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"carbohydrates and proteins.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":3}]},{"QuestionId":16,"QuestionFullText":"A person's glucose level in the blood has increased above the optimum level. Which of the following food items should he consume minimally?","QuestionShortText":"A person's glucose level in the blood has","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"meat","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"milk","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"green gram (mung/payaru)","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"bread","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]},{"QuestionId":17,"QuestionFullText":"Select the false statement about nucleic acids.","QuestionShortText":"Select the false statement about nucleic acids.","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"building unit is called nucleotide","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"a natural polymer","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"store hereditory information","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"contain the elements C, H, O and N only","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]},{"QuestionId":18,"QuestionFullText":"Examples for the seeds/fruits dispersed by water, wind and explosive mechanism respectively are","QuestionShortText":"Examples for the seeds/fruits dispersed by water, wind","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"Ceylon almond (kottamba/kaththappu), hora and mango.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"lotus, castor (endaru/amanakku) and rubber.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"coconut, milkweed (vara/erukkalai) and rubber.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"jack, cotton and okra (bandakka/vendi).","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":3}]},{"QuestionId":19,"QuestionFullText":"Which of the following does not pass into the foetus from the mother through the umbilical cord?","QuestionShortText":"Which of the following does not pass into","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"blood","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"nutrients","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"oxygen","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"pathogens","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":1}]},{"QuestionId":20,"QuestionFullText":"What is the ray diagram which illustrates the phenomenon of total internal reflection?","QuestionShortText":"What is the ray diagram which illustrates the","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52929366402_47a910edd1_o.png"},{"AnswerId":2,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52930338645_3bbd6df3e6_o.png"},{"AnswerId":3,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52929959346_4633713a64_o.png"},{"AnswerId":4,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52930340400_dc10d08240_o.png"}],"CorrectAnswers":[{"Id":1}]},{"QuestionId":21,"QuestionFullText":"An athlete finishing a running event suffered from a cramp in his leg. What is the chemical compound which is produced in muscle cells causing the cramp?","QuestionShortText":"An athlete finishing a running event suffered from","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"carbon dioxide","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"ethyl alcohol","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"lactic acid","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"acetic acid","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":3}]},{"QuestionId":22,"QuestionFullText":"A warm-blooded (homoeothermic) animal and a cold-blood (poikilothermic) animal respectively are","QuestionShortText":"A warm-blooded (homoeothermic) animal and a cold-blood (poikilothermic)","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"pigeon and frog.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"bear and rat.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"rat snake and whale.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"crocodile and tortoise.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":1}]},{"QuestionId":23,"QuestionFullText":"Which arrangement can be used to obtain a voltage of 3 V from two dry cells each with an electromotive force of 1.5 V?","QuestionShortText":"Which arrangement can be used to obtain a","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52930120844_746cccb9d2_o.png"},{"AnswerId":2,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52930353945_aca649a558_o.png"},{"AnswerId":3,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52930122604_d05e7c9b8e_o.png"},{"AnswerId":4,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52930355960_2968d55db2_o.png"}],"CorrectAnswers":[{"Id":3}]},{"QuestionId":24,"QuestionFullText":"What is the metal that reacts with hot water but not with cold water?","QuestionShortText":"What is the metal that reacts with hot","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"sodium","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"magnesium","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"aluminium","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"calcium","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":25,"QuestionFullText":"What is the correct statement about the Covid-19 virus?","QuestionShortText":"What is the correct statement about the Covid-19","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"can be observed by the optical microscope","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"carries out metabolic activities","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"bears a nucleus with DNA","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"shows living as well as non-living characteristics","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]},{"QuestionId":26,"QuestionFullText":"When salt is extracted from sea water in a saltern, what is the compound that precipitates along with NaCl?","QuestionShortText":"When salt is extracted from sea water in","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"Na₂SO₄","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"MgCl₂","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"CaCO₃","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"CaSO₄","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":27,"QuestionFullText":"The maximum upthrust exerted by water on a certain object is less than the weight of the object. Then, the object will","QuestionShortText":"The maximum upthrust exerted by water on a","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"float on the water surface.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"float partly immersed in water.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"float fully immersed in water.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"sink fully in water.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]},{"QuestionId":28,"QuestionFullText":"What is the part common to the human digestive system and the human respiratory system?","QuestionShortText":"What is the part common to the human","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"mouth","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"oesophagus","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"pharynx","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"larynx","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":3}]},{"QuestionId":29,"QuestionFullText":"The figure shows how a couple of forces is applied to rotate a wheel of 0.4 m radius. How much is the moment of this couple?","QuestionShortText":"The figure shows how a couple of forces","QuestionImageUrl":"https://live.staticflickr.com/65535/52930450323_8f6aaf9cef_o.png","Answers":[{"AnswerId":1,"AnswerText":"5 x 0.4 Nm","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"5 x 0.8 Nm","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"5 x 5 x 0.4 Nm","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"5 x 5 x 0.8 Nm","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":30,"QuestionFullText":"What is the mole fraction of O₂ in a mixture containing 96 g of oxygen gas (O₂) and 56 g of oxygen gas (O₂) and 56 g of nitrogen gas (N₂)?
(N = 14, O = 16)","QuestionShortText":"What is the mole fraction of O₂ in","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"⅕","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"⅖","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"⅗","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"⅘","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":3}]},{"QuestionId":31,"QuestionFullText":"Given below are four ways by which zinc metal and hydrochloric acid were reacted at room temperature. In which way is hydrogen gas liberated with the highest speed?","QuestionShortText":"Given below are four ways by which zinc","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"zinc granules + dilute hydrochloric","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"zinc granules + concentrated hydrochloric","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"zinc powder + dilute hydrochloric","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"zinc powder + concentrated hydrochloric","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]},{"QuestionId":32,"QuestionFullText":"Between a strong acid and a strong base,","QuestionShortText":"Between a strong acid and a strong base,","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"an exothermic neutralization reaction occurs.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"an endothermic neutralization reaction occurs.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"an exothermic combination reaction occurs.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"an endothermic combination reaction occurs.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":1}]},{"QuestionId":33,"QuestionFullText":"A conductor carrying an electric current 'I', is kept perpendicular to a magnetic field as shown in the diagram. Horizontal lines indicate the direction of the magnetic field. The direction of the force acting on the conductor is","QuestionShortText":"A conductor carrying an electric current 'I', is","QuestionImageUrl":"https://live.staticflickr.com/65535/52930043831_cbe0256770_o.png","Answers":[{"AnswerId":1,"AnswerText":"toward the left on the plane of the paper.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"toward the right on the plane of the paper.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"into the plane of the paper perpendicular to the plane.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"out of the plane of the paper perpendicular to the plane.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":3}]},{"QuestionId":34,"QuestionFullText":"Under normal atmosphere pressure, a pure block of ice at temperature -10⁰C was heated at a uniform rate until it was turned into liquid water and then for some time after the water started to boil. Which graph correctly indicates the variation of the temperature of the system with time?","QuestionShortText":"Under normal atmosphere pressure, a pure block of","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52929463022_d43320e0a1_o.png"},{"AnswerId":2,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52930435745_a65f570472_o.png"},{"AnswerId":3,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52930203769_37014a4f96_o.png"},{"AnswerId":4,"AnswerText":"","AnswerImageUrl":"https://live.staticflickr.com/65535/52930058286_d5b8038dc5_o.png"}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":35,"QuestionFullText":"Consider the following statements presented regarding natural rubber.
A - It is a linear polymer
B - Isoprene is the monomer
C - There are cross links among the chains
Of these statements","QuestionShortText":"Consider the following statements presented regarding natural rubber.","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"only A is true.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"only A and B are true.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"only B and C are true.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"only A and C are true.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":36,"QuestionFullText":"Corrosion of iron can be controlled by keeping iron in contact with the bivalent metal M. What is the half reaction to which the metal M is subjected here?","QuestionShortText":"Corrosion of iron can be controlled by keeping","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"M(s) ⟶ M²⁺ (aq) + 2e","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"M²⁺ (aq) ⟶ M(s) + 2e","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"M²⁺ (aq) + 2e ⟶ M(s)","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"M(s) ⟶ M⁺ (aq) + e","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":1}]},{"QuestionId":37,"QuestionFullText":"A 4 N force and a 3 N force are applied on an object at the same instance. Consider the following statements given about the magnitude of the resultant obtainable at that occasion.
A - The maximum magnitude of the resultant obtainable is 7 N.
B - The minimum magnitude of the resultant obtainable is 1 N.
C - The magnitude of the resultant obtainable is always 5 N.
Of the above, the correct statement(s) is / are","QuestionShortText":"A 4 N force and a 3 N","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"only A.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"only B.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"only C.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"only A and B.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]},{"QuestionId":38,"QuestionFullText":"A strong bar magnet is moved into and away from an insulated wire coil with a large number of turns as illustrated by the diagram. What is the correct observation about the instances of movement of the magnet?","QuestionShortText":"A strong bar magnet is moved into and","QuestionImageUrl":"https://live.staticflickr.com/65535/52929508617_02f6032a63_o.png","Answers":[{"AnswerId":1,"AnswerText":"In both instances, both the bulb and two LEDs light simultaneously.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"In both instances, the bulb lights and only one LED lights.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"The bulb and one LED light only when moved into the coil.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"The bulb and one LED light only when moved away from the coil.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":2}]},{"QuestionId":39,"QuestionFullText":"Consider the following statements.
A - Biomagnification occurs along a food chain.
B - Toxic chemical pollutants concentrate more in the upper trophic levels of a food chain.
Of the above statements,","QuestionShortText":"Consider the following statements. A - Biomagnification","QuestionImageUrl":"","Answers":[{"AnswerId":1,"AnswerText":"both A and B are true.","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"A is true while B is false.","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"A is false while B is true.","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"both A and B are false.","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":1}]},{"QuestionId":40,"QuestionFullText":"A statement displayed on a board near a tank is shown in the figure. Which of the following human activities in connection with the tank would have contributed most to the change mentioned on the board?","QuestionShortText":"A statement displayed on a board near a","QuestionImageUrl":"https://live.staticflickr.com/65535/52930506070_1b064bd520_o.png","Answers":[{"AnswerId":1,"AnswerText":"clearing the area above the tank","AnswerImageUrl":""},{"AnswerId":2,"AnswerText":"increase in algae population due to fishing","AnswerImageUrl":""},{"AnswerId":3,"AnswerText":"accumulation of oil and grease due to vehicle wash","AnswerImageUrl":""},{"AnswerId":4,"AnswerText":"addition of faecal and excretory matter to the water","AnswerImageUrl":""}],"CorrectAnswers":[{"Id":4}]}]}