National Level Questions Paper (SAT) - 2015-16 | NTSE for Class 10 PDF Download

 Page 1


 
 
 
NTSE STAGE II 
CODE: 13 – 15  
SAT 
 
1. Suppose a mutant of a photosynthetic alga has dysfunctional initochondria. It would affect its 
ability to perform 
 (1) glycolysis (2) anaerobic respiration 
 (3) aerobic respiration (4) photosynthesis 
 
2. Cow has a special stomach as compared to that of a lion in order to 
 (1) absorb food in better manner 
 (2) digest cellulose present in the food. 
 (3) assimilate food in a better way 
 (4) absorb large amount of water. 
 
3. When touched, the leaflets of Touch-me-not plant are closed. Closing of leaflets starts from 
the point of contact to the leaflets away. The leaflets are closed due to 
 (1) change in turgor pressure (2) specialized proteins 
 (3) growth hormone retardation (4) capillary; action 
 
4. Pancreas is composed of 
 (1) Only exocrine cells. (2) Only endocrine cells. 
 (3) Both endocrine and exocrine cells. (4) Nephrons 
 
5. The human embryo gets nutrition from the mother blood with the help of a special organ 
called 
 (1) Zygote (2) Ovary 
 (3) Oviduct (4) Placenta 
 
6. Hormones produced in one part of the organism reach the distantly located target via 
 (1) muscles (2) bone 
 (3) cartilage (4) blood 
 
7. Which of the following are characteristic features of cells of meristematic tissue? 
 (1) Actively dividing cells with dense cytoplasm, thick cell wall and prominent nuclei. 
 (2) Actively dividing cells with dense cytoplasm, thin cell wall and no vacuoles. 
 (3) Actively dividing cells with little cytoplasm, thin cell wall and prominent nuclei. 
 (4) Actively dividing cells with thin cytoplasm, thin cell wall and no vacuoles. 
 
8. Which one of the following animals is different from others in not having the paired gill 
pouches? 
 (1) Whale (2) Water snake 
 (3) Star fish (4) Sea horse 
 
9. In the symbiotic relationship between a bacterium and a root of legume the 
 (1) bacteria provide N
2
 and the plant roots provide carbon. 
 (2) roots provide NH
4
 and bacteria provide carbon. 
 (3) bacteria provide NH
4
 and the roots provide carbon. 
 (4) bacteria provide N
2
 and the roots provide NH
4
. 
 
10. Which of the following is a result of biological magnification? 
 (1) Top level predators may be most harmed by toxic chemicals in environment.  
 (2) Increase in carbon dioxide. 
 (3) The green-house effect will be most significant at the poles. 
 (4) Energy is lost at each tropic level of a food chain. 
 
Page 2


 
 
 
NTSE STAGE II 
CODE: 13 – 15  
SAT 
 
1. Suppose a mutant of a photosynthetic alga has dysfunctional initochondria. It would affect its 
ability to perform 
 (1) glycolysis (2) anaerobic respiration 
 (3) aerobic respiration (4) photosynthesis 
 
2. Cow has a special stomach as compared to that of a lion in order to 
 (1) absorb food in better manner 
 (2) digest cellulose present in the food. 
 (3) assimilate food in a better way 
 (4) absorb large amount of water. 
 
3. When touched, the leaflets of Touch-me-not plant are closed. Closing of leaflets starts from 
the point of contact to the leaflets away. The leaflets are closed due to 
 (1) change in turgor pressure (2) specialized proteins 
 (3) growth hormone retardation (4) capillary; action 
 
4. Pancreas is composed of 
 (1) Only exocrine cells. (2) Only endocrine cells. 
 (3) Both endocrine and exocrine cells. (4) Nephrons 
 
5. The human embryo gets nutrition from the mother blood with the help of a special organ 
called 
 (1) Zygote (2) Ovary 
 (3) Oviduct (4) Placenta 
 
6. Hormones produced in one part of the organism reach the distantly located target via 
 (1) muscles (2) bone 
 (3) cartilage (4) blood 
 
7. Which of the following are characteristic features of cells of meristematic tissue? 
 (1) Actively dividing cells with dense cytoplasm, thick cell wall and prominent nuclei. 
 (2) Actively dividing cells with dense cytoplasm, thin cell wall and no vacuoles. 
 (3) Actively dividing cells with little cytoplasm, thin cell wall and prominent nuclei. 
 (4) Actively dividing cells with thin cytoplasm, thin cell wall and no vacuoles. 
 
8. Which one of the following animals is different from others in not having the paired gill 
pouches? 
 (1) Whale (2) Water snake 
 (3) Star fish (4) Sea horse 
 
9. In the symbiotic relationship between a bacterium and a root of legume the 
 (1) bacteria provide N
2
 and the plant roots provide carbon. 
 (2) roots provide NH
4
 and bacteria provide carbon. 
 (3) bacteria provide NH
4
 and the roots provide carbon. 
 (4) bacteria provide N
2
 and the roots provide NH
4
. 
 
10. Which of the following is a result of biological magnification? 
 (1) Top level predators may be most harmed by toxic chemicals in environment.  
 (2) Increase in carbon dioxide. 
 (3) The green-house effect will be most significant at the poles. 
 (4) Energy is lost at each tropic level of a food chain. 
 
 
 
 
11. Which one of the following signifies ex situ conservation?  
 (1) National parks and Biosphere reveres. 
 (2) Wild animals in their natural habitats. 
 (3) Inhabitants of natural ecosystems. 
 (4) Conservation methods practiced in Zoo and Botanical garden. 
 
12. What is the main reason for increase in temperature in a glass house?  
 (1) Sunlight is completely absorbed by plants in the glass house. 
 (2) Radiation fails to escape from the glass house completely. 
 (3) Plants do not utilize sunlight in a glass house.’ 
 (4) Plants produce heat inside the glass house. 
 
13. Match the items in column I with those in column II, and select the correct choice. 
 
Column I Column II 
(A) Small pox (I) Bacteria 
(B) Cholera (II) Virus 
(C) Malaria (III) Deficiency of minerals 
(D) Anaemia (IV) Female mosquito 
 
 (1) A–IV, B–II, C–III, D–I (2) A–II, B–I, C–IV, D–III 
 (3) A–IV, B–III, C–II, D–I (4) A–III, B–IV, C–I, D–II 
 
14. In the experiment conducted by Mendel, RRyy (round, green) and rrYY (wrinkled, yellow) 
seeds of pea plant were used. In the F
2
 generation 240 progeny were produced, out of which 
15 progeny had specific characteristics. What were the characteristics? 
 (1) Round and green (2) Round and yellow 
 (3) Wrinkle and yellow (4) Wrinkle and green 
 
15. Total number of neutrons in five moles of water molecule is 
 (1) 3.011 × 10
24
 (2) 2.409 × 10
25
 
 (3) 3.111 × 10
25
 (4) 2.711 × 10
25
 
 
16. The metal used to recover copper from an aqueous solution of copper sulphate is 
 (1) Na (2) Ag 
 (3) Hg (4) Fe 
 
17. Four substances were thoroughly mixed with water separately to obtain mixtures A, B, C and 
D. Some of their properties are given below: 
 (I) Path of a beam of light passing through it was visible in A, B and D but invisible in C. 
 (II) On leaving undisturbed, the particles of the substance settle down in A but not in B, C 
and D. 
 (III) The solute particles are visible to naked eye in a but invisible in B, C and D. 
 Which of the following is correct about A, B, C and D? 
 (1) A, B and D are colloids, C is a solution. 
 (2) A is a suspension, B and D are colloids, C is a solution. 
 (3) A is a colloid. B, C and D are solutions. 
  (4) A is a suspension. B, C and D are colloids. 
 
18. Assertion (A): Aluminium foil cannot be used n ?-particle scattering experiment. 
 Reason (R): Aluminium is highly malleable metal.  
 (1) Both A and R are correct. R is the correct reason for A. 
 (2) Both A and R are correct but R is not the correct reason for A. 
 (3) A is correct and R is incorrect. 
 (4) A is incorrect and R is correct. 
 
Page 3


 
 
 
NTSE STAGE II 
CODE: 13 – 15  
SAT 
 
1. Suppose a mutant of a photosynthetic alga has dysfunctional initochondria. It would affect its 
ability to perform 
 (1) glycolysis (2) anaerobic respiration 
 (3) aerobic respiration (4) photosynthesis 
 
2. Cow has a special stomach as compared to that of a lion in order to 
 (1) absorb food in better manner 
 (2) digest cellulose present in the food. 
 (3) assimilate food in a better way 
 (4) absorb large amount of water. 
 
3. When touched, the leaflets of Touch-me-not plant are closed. Closing of leaflets starts from 
the point of contact to the leaflets away. The leaflets are closed due to 
 (1) change in turgor pressure (2) specialized proteins 
 (3) growth hormone retardation (4) capillary; action 
 
4. Pancreas is composed of 
 (1) Only exocrine cells. (2) Only endocrine cells. 
 (3) Both endocrine and exocrine cells. (4) Nephrons 
 
5. The human embryo gets nutrition from the mother blood with the help of a special organ 
called 
 (1) Zygote (2) Ovary 
 (3) Oviduct (4) Placenta 
 
6. Hormones produced in one part of the organism reach the distantly located target via 
 (1) muscles (2) bone 
 (3) cartilage (4) blood 
 
7. Which of the following are characteristic features of cells of meristematic tissue? 
 (1) Actively dividing cells with dense cytoplasm, thick cell wall and prominent nuclei. 
 (2) Actively dividing cells with dense cytoplasm, thin cell wall and no vacuoles. 
 (3) Actively dividing cells with little cytoplasm, thin cell wall and prominent nuclei. 
 (4) Actively dividing cells with thin cytoplasm, thin cell wall and no vacuoles. 
 
8. Which one of the following animals is different from others in not having the paired gill 
pouches? 
 (1) Whale (2) Water snake 
 (3) Star fish (4) Sea horse 
 
9. In the symbiotic relationship between a bacterium and a root of legume the 
 (1) bacteria provide N
2
 and the plant roots provide carbon. 
 (2) roots provide NH
4
 and bacteria provide carbon. 
 (3) bacteria provide NH
4
 and the roots provide carbon. 
 (4) bacteria provide N
2
 and the roots provide NH
4
. 
 
10. Which of the following is a result of biological magnification? 
 (1) Top level predators may be most harmed by toxic chemicals in environment.  
 (2) Increase in carbon dioxide. 
 (3) The green-house effect will be most significant at the poles. 
 (4) Energy is lost at each tropic level of a food chain. 
 
 
 
 
11. Which one of the following signifies ex situ conservation?  
 (1) National parks and Biosphere reveres. 
 (2) Wild animals in their natural habitats. 
 (3) Inhabitants of natural ecosystems. 
 (4) Conservation methods practiced in Zoo and Botanical garden. 
 
12. What is the main reason for increase in temperature in a glass house?  
 (1) Sunlight is completely absorbed by plants in the glass house. 
 (2) Radiation fails to escape from the glass house completely. 
 (3) Plants do not utilize sunlight in a glass house.’ 
 (4) Plants produce heat inside the glass house. 
 
13. Match the items in column I with those in column II, and select the correct choice. 
 
Column I Column II 
(A) Small pox (I) Bacteria 
(B) Cholera (II) Virus 
(C) Malaria (III) Deficiency of minerals 
(D) Anaemia (IV) Female mosquito 
 
 (1) A–IV, B–II, C–III, D–I (2) A–II, B–I, C–IV, D–III 
 (3) A–IV, B–III, C–II, D–I (4) A–III, B–IV, C–I, D–II 
 
14. In the experiment conducted by Mendel, RRyy (round, green) and rrYY (wrinkled, yellow) 
seeds of pea plant were used. In the F
2
 generation 240 progeny were produced, out of which 
15 progeny had specific characteristics. What were the characteristics? 
 (1) Round and green (2) Round and yellow 
 (3) Wrinkle and yellow (4) Wrinkle and green 
 
15. Total number of neutrons in five moles of water molecule is 
 (1) 3.011 × 10
24
 (2) 2.409 × 10
25
 
 (3) 3.111 × 10
25
 (4) 2.711 × 10
25
 
 
16. The metal used to recover copper from an aqueous solution of copper sulphate is 
 (1) Na (2) Ag 
 (3) Hg (4) Fe 
 
17. Four substances were thoroughly mixed with water separately to obtain mixtures A, B, C and 
D. Some of their properties are given below: 
 (I) Path of a beam of light passing through it was visible in A, B and D but invisible in C. 
 (II) On leaving undisturbed, the particles of the substance settle down in A but not in B, C 
and D. 
 (III) The solute particles are visible to naked eye in a but invisible in B, C and D. 
 Which of the following is correct about A, B, C and D? 
 (1) A, B and D are colloids, C is a solution. 
 (2) A is a suspension, B and D are colloids, C is a solution. 
 (3) A is a colloid. B, C and D are solutions. 
  (4) A is a suspension. B, C and D are colloids. 
 
18. Assertion (A): Aluminium foil cannot be used n ?-particle scattering experiment. 
 Reason (R): Aluminium is highly malleable metal.  
 (1) Both A and R are correct. R is the correct reason for A. 
 (2) Both A and R are correct but R is not the correct reason for A. 
 (3) A is correct and R is incorrect. 
 (4) A is incorrect and R is correct. 
 
 
 
 
19. Magnesium ribbon is rubbed with sand paper before making it to burn. The reason of 
rubbing the ribbon  is to 
 (1) remove moisture condensed over the surface of ribbon. 
 (2) generate heat due to exothermic reaction. 
 (3) remove magnesium oxide formed over the surface of magnesium. 
 (4) mix silicon from and paper (silicon dioxide with magnesium for lowering ignition 
temperature of the ribbon. 
 
20. The reaction that differs from the rest of the reactions given is 
 (1) formation of calcium oxide from limestone. 
 (2) formation of aluminium from aluminium oxide. 
 (3) formation of sodium carbonate fro sodium hydrogen carbonate. 
 (4) formation of mercury from mercuric oxide. 
 
21. An element X reacts with dilute H
2
SO
4
 as well as with NaOH to produce salt and H
2
(g). 
Hence, It may be concluded that: 
 (I) X is an electropositive element. 
 (II)  oxide of X is basic in nature. 
 (III)  oxide of X is acidic in nature. 
 (IV)  X is an electronegative element. 
 (1) I, II, IIII (2) IV, I, III 
 (3) III, IV, I (4) II, III, IV 
 
22. An element X has electronic configuration 2, 8, 1 and another element Y has electronic 
configuration 2, 8, 7. They form a compound Z. The property that is not exhibited by Z is 
 (1) It has high melting point 
 (2) It is a good conductor of electricity in its pure solid state. 
 (3) It breaks into pieces when beaten with hammer. 
 (4) It is soluble in water 
 
23. the compound containing both ionic and covalent bond is     
 (1) AlBr
3
 (2) CaO 
 (3) MgCl
2
 (4) NH
4
Cl 
 
24. The element that cannot be used as a reducing agent is 
 (1) carbon (2) aluminium 
 (3) sulphur (4) sodium 
 
25. Somebody wanted to calculate the number of moles of oxygen atoms comprising of  
9.033 × 10
23
 number of its atoms. The person further thought to calculate its mass and to 
find the number of moles of hydrogen atoms required to combine completely with this 
amount of oxygen to form water. The number of moles of oxygen atoms, their mass  
(in grams) and the number of moles of hydrogen atoms are 
 (1) 1.5, 3 and 24 respectively (2) 15, 18 and 3 respectively 
 (C) 0.15, 27. 3 respectively. (4) 1.5, 24 and 3 respectively 
 
26. The molecular formula of carboxylic acid that differs from the rest is 
 (1) C
13
H
26
O
2
 (2) C
2
H
4
O
2
 
 (3) C
9
H
18
O
2
 (4) C
7
H
12
O
2
 
 
27. Foam of soap always appears white as 
 (1) it contains large hydrogen chains. 
 (2) it absorbs red portion of the visible light.  
 (3) it reflects light of all wavelengths. 
 (4) it has one hydrophobic end, which is insoluble in water. 
 
Page 4


 
 
 
NTSE STAGE II 
CODE: 13 – 15  
SAT 
 
1. Suppose a mutant of a photosynthetic alga has dysfunctional initochondria. It would affect its 
ability to perform 
 (1) glycolysis (2) anaerobic respiration 
 (3) aerobic respiration (4) photosynthesis 
 
2. Cow has a special stomach as compared to that of a lion in order to 
 (1) absorb food in better manner 
 (2) digest cellulose present in the food. 
 (3) assimilate food in a better way 
 (4) absorb large amount of water. 
 
3. When touched, the leaflets of Touch-me-not plant are closed. Closing of leaflets starts from 
the point of contact to the leaflets away. The leaflets are closed due to 
 (1) change in turgor pressure (2) specialized proteins 
 (3) growth hormone retardation (4) capillary; action 
 
4. Pancreas is composed of 
 (1) Only exocrine cells. (2) Only endocrine cells. 
 (3) Both endocrine and exocrine cells. (4) Nephrons 
 
5. The human embryo gets nutrition from the mother blood with the help of a special organ 
called 
 (1) Zygote (2) Ovary 
 (3) Oviduct (4) Placenta 
 
6. Hormones produced in one part of the organism reach the distantly located target via 
 (1) muscles (2) bone 
 (3) cartilage (4) blood 
 
7. Which of the following are characteristic features of cells of meristematic tissue? 
 (1) Actively dividing cells with dense cytoplasm, thick cell wall and prominent nuclei. 
 (2) Actively dividing cells with dense cytoplasm, thin cell wall and no vacuoles. 
 (3) Actively dividing cells with little cytoplasm, thin cell wall and prominent nuclei. 
 (4) Actively dividing cells with thin cytoplasm, thin cell wall and no vacuoles. 
 
8. Which one of the following animals is different from others in not having the paired gill 
pouches? 
 (1) Whale (2) Water snake 
 (3) Star fish (4) Sea horse 
 
9. In the symbiotic relationship between a bacterium and a root of legume the 
 (1) bacteria provide N
2
 and the plant roots provide carbon. 
 (2) roots provide NH
4
 and bacteria provide carbon. 
 (3) bacteria provide NH
4
 and the roots provide carbon. 
 (4) bacteria provide N
2
 and the roots provide NH
4
. 
 
10. Which of the following is a result of biological magnification? 
 (1) Top level predators may be most harmed by toxic chemicals in environment.  
 (2) Increase in carbon dioxide. 
 (3) The green-house effect will be most significant at the poles. 
 (4) Energy is lost at each tropic level of a food chain. 
 
 
 
 
11. Which one of the following signifies ex situ conservation?  
 (1) National parks and Biosphere reveres. 
 (2) Wild animals in their natural habitats. 
 (3) Inhabitants of natural ecosystems. 
 (4) Conservation methods practiced in Zoo and Botanical garden. 
 
12. What is the main reason for increase in temperature in a glass house?  
 (1) Sunlight is completely absorbed by plants in the glass house. 
 (2) Radiation fails to escape from the glass house completely. 
 (3) Plants do not utilize sunlight in a glass house.’ 
 (4) Plants produce heat inside the glass house. 
 
13. Match the items in column I with those in column II, and select the correct choice. 
 
Column I Column II 
(A) Small pox (I) Bacteria 
(B) Cholera (II) Virus 
(C) Malaria (III) Deficiency of minerals 
(D) Anaemia (IV) Female mosquito 
 
 (1) A–IV, B–II, C–III, D–I (2) A–II, B–I, C–IV, D–III 
 (3) A–IV, B–III, C–II, D–I (4) A–III, B–IV, C–I, D–II 
 
14. In the experiment conducted by Mendel, RRyy (round, green) and rrYY (wrinkled, yellow) 
seeds of pea plant were used. In the F
2
 generation 240 progeny were produced, out of which 
15 progeny had specific characteristics. What were the characteristics? 
 (1) Round and green (2) Round and yellow 
 (3) Wrinkle and yellow (4) Wrinkle and green 
 
15. Total number of neutrons in five moles of water molecule is 
 (1) 3.011 × 10
24
 (2) 2.409 × 10
25
 
 (3) 3.111 × 10
25
 (4) 2.711 × 10
25
 
 
16. The metal used to recover copper from an aqueous solution of copper sulphate is 
 (1) Na (2) Ag 
 (3) Hg (4) Fe 
 
17. Four substances were thoroughly mixed with water separately to obtain mixtures A, B, C and 
D. Some of their properties are given below: 
 (I) Path of a beam of light passing through it was visible in A, B and D but invisible in C. 
 (II) On leaving undisturbed, the particles of the substance settle down in A but not in B, C 
and D. 
 (III) The solute particles are visible to naked eye in a but invisible in B, C and D. 
 Which of the following is correct about A, B, C and D? 
 (1) A, B and D are colloids, C is a solution. 
 (2) A is a suspension, B and D are colloids, C is a solution. 
 (3) A is a colloid. B, C and D are solutions. 
  (4) A is a suspension. B, C and D are colloids. 
 
18. Assertion (A): Aluminium foil cannot be used n ?-particle scattering experiment. 
 Reason (R): Aluminium is highly malleable metal.  
 (1) Both A and R are correct. R is the correct reason for A. 
 (2) Both A and R are correct but R is not the correct reason for A. 
 (3) A is correct and R is incorrect. 
 (4) A is incorrect and R is correct. 
 
 
 
 
19. Magnesium ribbon is rubbed with sand paper before making it to burn. The reason of 
rubbing the ribbon  is to 
 (1) remove moisture condensed over the surface of ribbon. 
 (2) generate heat due to exothermic reaction. 
 (3) remove magnesium oxide formed over the surface of magnesium. 
 (4) mix silicon from and paper (silicon dioxide with magnesium for lowering ignition 
temperature of the ribbon. 
 
20. The reaction that differs from the rest of the reactions given is 
 (1) formation of calcium oxide from limestone. 
 (2) formation of aluminium from aluminium oxide. 
 (3) formation of sodium carbonate fro sodium hydrogen carbonate. 
 (4) formation of mercury from mercuric oxide. 
 
21. An element X reacts with dilute H
2
SO
4
 as well as with NaOH to produce salt and H
2
(g). 
Hence, It may be concluded that: 
 (I) X is an electropositive element. 
 (II)  oxide of X is basic in nature. 
 (III)  oxide of X is acidic in nature. 
 (IV)  X is an electronegative element. 
 (1) I, II, IIII (2) IV, I, III 
 (3) III, IV, I (4) II, III, IV 
 
22. An element X has electronic configuration 2, 8, 1 and another element Y has electronic 
configuration 2, 8, 7. They form a compound Z. The property that is not exhibited by Z is 
 (1) It has high melting point 
 (2) It is a good conductor of electricity in its pure solid state. 
 (3) It breaks into pieces when beaten with hammer. 
 (4) It is soluble in water 
 
23. the compound containing both ionic and covalent bond is     
 (1) AlBr
3
 (2) CaO 
 (3) MgCl
2
 (4) NH
4
Cl 
 
24. The element that cannot be used as a reducing agent is 
 (1) carbon (2) aluminium 
 (3) sulphur (4) sodium 
 
25. Somebody wanted to calculate the number of moles of oxygen atoms comprising of  
9.033 × 10
23
 number of its atoms. The person further thought to calculate its mass and to 
find the number of moles of hydrogen atoms required to combine completely with this 
amount of oxygen to form water. The number of moles of oxygen atoms, their mass  
(in grams) and the number of moles of hydrogen atoms are 
 (1) 1.5, 3 and 24 respectively (2) 15, 18 and 3 respectively 
 (C) 0.15, 27. 3 respectively. (4) 1.5, 24 and 3 respectively 
 
26. The molecular formula of carboxylic acid that differs from the rest is 
 (1) C
13
H
26
O
2
 (2) C
2
H
4
O
2
 
 (3) C
9
H
18
O
2
 (4) C
7
H
12
O
2
 
 
27. Foam of soap always appears white as 
 (1) it contains large hydrogen chains. 
 (2) it absorbs red portion of the visible light.  
 (3) it reflects light of all wavelengths. 
 (4) it has one hydrophobic end, which is insoluble in water. 
 
 
 
 
28. In a neon gas discharge tube, every second 4.8 × 10
18
 Ne
+
 ions move towards the  
right through a cross-section of the tube, while ‘n’ electrons move to the left in the same time. 
If the current in the tube is 1.12 amperes towards the right, ‘n’ is equal to (given  
e = 1.6 × 10
–19
 coulomb) 
 (1) 1.8 × 10
18
 (2) 2.2 × 10
18
 
 (3) 2.4 × 10
19
 (4) 2.8 × 10
19
 
 
29. Four situations are given below 
 (I) An infinitely long wire carrying current 
 (II) A rectangular loop carrying current 
 (III) A solenoid of finite length carrying current. 
 (IV) A circular loop carrying current. 
 
 In which of the above cases will the magnetic field produced be like that of a bar magnet? 
 (1) I (2) I and III    
 (3) Only III (4) Only IV 
 
30. In the circuit diagram shown below, V
A
 and V
B
 are the potentials at points A and B 
respectively. Then, V
A
 – V
B
 is  
 
 
 (1) –10 V (2) –20 V 
 (3) 0 V (4) 10 V 
 
31. Assertion (A): Motion of a charged particle under the action of a magnetic field alone is 
always with constant speed. 
 Reason (R): The magnetic force does not have any component either along or opposite to 
the direction of motion of the charged particle. 
 (1) Both Assertion and Reason are true and the reason is the correct explanation of the 
assertion. 
 (2) Both Assertion and Reason are true, but the reason is not the correct explanation of the 
assertion. 
 (3) Assertion is a true statement, but Reason is false. 
 (4) Both Assertion and Reason are false statements.  
 
32. When a charged particle passes through an electric field, which among the following 
properties change? 
 (I) mass (II) charge 
 (III) velocity (IV) momentum 
 
 (1) II & III (2) only III 
 (3) III & IV (4) I, III & IV 
Page 5


 
 
 
NTSE STAGE II 
CODE: 13 – 15  
SAT 
 
1. Suppose a mutant of a photosynthetic alga has dysfunctional initochondria. It would affect its 
ability to perform 
 (1) glycolysis (2) anaerobic respiration 
 (3) aerobic respiration (4) photosynthesis 
 
2. Cow has a special stomach as compared to that of a lion in order to 
 (1) absorb food in better manner 
 (2) digest cellulose present in the food. 
 (3) assimilate food in a better way 
 (4) absorb large amount of water. 
 
3. When touched, the leaflets of Touch-me-not plant are closed. Closing of leaflets starts from 
the point of contact to the leaflets away. The leaflets are closed due to 
 (1) change in turgor pressure (2) specialized proteins 
 (3) growth hormone retardation (4) capillary; action 
 
4. Pancreas is composed of 
 (1) Only exocrine cells. (2) Only endocrine cells. 
 (3) Both endocrine and exocrine cells. (4) Nephrons 
 
5. The human embryo gets nutrition from the mother blood with the help of a special organ 
called 
 (1) Zygote (2) Ovary 
 (3) Oviduct (4) Placenta 
 
6. Hormones produced in one part of the organism reach the distantly located target via 
 (1) muscles (2) bone 
 (3) cartilage (4) blood 
 
7. Which of the following are characteristic features of cells of meristematic tissue? 
 (1) Actively dividing cells with dense cytoplasm, thick cell wall and prominent nuclei. 
 (2) Actively dividing cells with dense cytoplasm, thin cell wall and no vacuoles. 
 (3) Actively dividing cells with little cytoplasm, thin cell wall and prominent nuclei. 
 (4) Actively dividing cells with thin cytoplasm, thin cell wall and no vacuoles. 
 
8. Which one of the following animals is different from others in not having the paired gill 
pouches? 
 (1) Whale (2) Water snake 
 (3) Star fish (4) Sea horse 
 
9. In the symbiotic relationship between a bacterium and a root of legume the 
 (1) bacteria provide N
2
 and the plant roots provide carbon. 
 (2) roots provide NH
4
 and bacteria provide carbon. 
 (3) bacteria provide NH
4
 and the roots provide carbon. 
 (4) bacteria provide N
2
 and the roots provide NH
4
. 
 
10. Which of the following is a result of biological magnification? 
 (1) Top level predators may be most harmed by toxic chemicals in environment.  
 (2) Increase in carbon dioxide. 
 (3) The green-house effect will be most significant at the poles. 
 (4) Energy is lost at each tropic level of a food chain. 
 
 
 
 
11. Which one of the following signifies ex situ conservation?  
 (1) National parks and Biosphere reveres. 
 (2) Wild animals in their natural habitats. 
 (3) Inhabitants of natural ecosystems. 
 (4) Conservation methods practiced in Zoo and Botanical garden. 
 
12. What is the main reason for increase in temperature in a glass house?  
 (1) Sunlight is completely absorbed by plants in the glass house. 
 (2) Radiation fails to escape from the glass house completely. 
 (3) Plants do not utilize sunlight in a glass house.’ 
 (4) Plants produce heat inside the glass house. 
 
13. Match the items in column I with those in column II, and select the correct choice. 
 
Column I Column II 
(A) Small pox (I) Bacteria 
(B) Cholera (II) Virus 
(C) Malaria (III) Deficiency of minerals 
(D) Anaemia (IV) Female mosquito 
 
 (1) A–IV, B–II, C–III, D–I (2) A–II, B–I, C–IV, D–III 
 (3) A–IV, B–III, C–II, D–I (4) A–III, B–IV, C–I, D–II 
 
14. In the experiment conducted by Mendel, RRyy (round, green) and rrYY (wrinkled, yellow) 
seeds of pea plant were used. In the F
2
 generation 240 progeny were produced, out of which 
15 progeny had specific characteristics. What were the characteristics? 
 (1) Round and green (2) Round and yellow 
 (3) Wrinkle and yellow (4) Wrinkle and green 
 
15. Total number of neutrons in five moles of water molecule is 
 (1) 3.011 × 10
24
 (2) 2.409 × 10
25
 
 (3) 3.111 × 10
25
 (4) 2.711 × 10
25
 
 
16. The metal used to recover copper from an aqueous solution of copper sulphate is 
 (1) Na (2) Ag 
 (3) Hg (4) Fe 
 
17. Four substances were thoroughly mixed with water separately to obtain mixtures A, B, C and 
D. Some of their properties are given below: 
 (I) Path of a beam of light passing through it was visible in A, B and D but invisible in C. 
 (II) On leaving undisturbed, the particles of the substance settle down in A but not in B, C 
and D. 
 (III) The solute particles are visible to naked eye in a but invisible in B, C and D. 
 Which of the following is correct about A, B, C and D? 
 (1) A, B and D are colloids, C is a solution. 
 (2) A is a suspension, B and D are colloids, C is a solution. 
 (3) A is a colloid. B, C and D are solutions. 
  (4) A is a suspension. B, C and D are colloids. 
 
18. Assertion (A): Aluminium foil cannot be used n ?-particle scattering experiment. 
 Reason (R): Aluminium is highly malleable metal.  
 (1) Both A and R are correct. R is the correct reason for A. 
 (2) Both A and R are correct but R is not the correct reason for A. 
 (3) A is correct and R is incorrect. 
 (4) A is incorrect and R is correct. 
 
 
 
 
19. Magnesium ribbon is rubbed with sand paper before making it to burn. The reason of 
rubbing the ribbon  is to 
 (1) remove moisture condensed over the surface of ribbon. 
 (2) generate heat due to exothermic reaction. 
 (3) remove magnesium oxide formed over the surface of magnesium. 
 (4) mix silicon from and paper (silicon dioxide with magnesium for lowering ignition 
temperature of the ribbon. 
 
20. The reaction that differs from the rest of the reactions given is 
 (1) formation of calcium oxide from limestone. 
 (2) formation of aluminium from aluminium oxide. 
 (3) formation of sodium carbonate fro sodium hydrogen carbonate. 
 (4) formation of mercury from mercuric oxide. 
 
21. An element X reacts with dilute H
2
SO
4
 as well as with NaOH to produce salt and H
2
(g). 
Hence, It may be concluded that: 
 (I) X is an electropositive element. 
 (II)  oxide of X is basic in nature. 
 (III)  oxide of X is acidic in nature. 
 (IV)  X is an electronegative element. 
 (1) I, II, IIII (2) IV, I, III 
 (3) III, IV, I (4) II, III, IV 
 
22. An element X has electronic configuration 2, 8, 1 and another element Y has electronic 
configuration 2, 8, 7. They form a compound Z. The property that is not exhibited by Z is 
 (1) It has high melting point 
 (2) It is a good conductor of electricity in its pure solid state. 
 (3) It breaks into pieces when beaten with hammer. 
 (4) It is soluble in water 
 
23. the compound containing both ionic and covalent bond is     
 (1) AlBr
3
 (2) CaO 
 (3) MgCl
2
 (4) NH
4
Cl 
 
24. The element that cannot be used as a reducing agent is 
 (1) carbon (2) aluminium 
 (3) sulphur (4) sodium 
 
25. Somebody wanted to calculate the number of moles of oxygen atoms comprising of  
9.033 × 10
23
 number of its atoms. The person further thought to calculate its mass and to 
find the number of moles of hydrogen atoms required to combine completely with this 
amount of oxygen to form water. The number of moles of oxygen atoms, their mass  
(in grams) and the number of moles of hydrogen atoms are 
 (1) 1.5, 3 and 24 respectively (2) 15, 18 and 3 respectively 
 (C) 0.15, 27. 3 respectively. (4) 1.5, 24 and 3 respectively 
 
26. The molecular formula of carboxylic acid that differs from the rest is 
 (1) C
13
H
26
O
2
 (2) C
2
H
4
O
2
 
 (3) C
9
H
18
O
2
 (4) C
7
H
12
O
2
 
 
27. Foam of soap always appears white as 
 (1) it contains large hydrogen chains. 
 (2) it absorbs red portion of the visible light.  
 (3) it reflects light of all wavelengths. 
 (4) it has one hydrophobic end, which is insoluble in water. 
 
 
 
 
28. In a neon gas discharge tube, every second 4.8 × 10
18
 Ne
+
 ions move towards the  
right through a cross-section of the tube, while ‘n’ electrons move to the left in the same time. 
If the current in the tube is 1.12 amperes towards the right, ‘n’ is equal to (given  
e = 1.6 × 10
–19
 coulomb) 
 (1) 1.8 × 10
18
 (2) 2.2 × 10
18
 
 (3) 2.4 × 10
19
 (4) 2.8 × 10
19
 
 
29. Four situations are given below 
 (I) An infinitely long wire carrying current 
 (II) A rectangular loop carrying current 
 (III) A solenoid of finite length carrying current. 
 (IV) A circular loop carrying current. 
 
 In which of the above cases will the magnetic field produced be like that of a bar magnet? 
 (1) I (2) I and III    
 (3) Only III (4) Only IV 
 
30. In the circuit diagram shown below, V
A
 and V
B
 are the potentials at points A and B 
respectively. Then, V
A
 – V
B
 is  
 
 
 (1) –10 V (2) –20 V 
 (3) 0 V (4) 10 V 
 
31. Assertion (A): Motion of a charged particle under the action of a magnetic field alone is 
always with constant speed. 
 Reason (R): The magnetic force does not have any component either along or opposite to 
the direction of motion of the charged particle. 
 (1) Both Assertion and Reason are true and the reason is the correct explanation of the 
assertion. 
 (2) Both Assertion and Reason are true, but the reason is not the correct explanation of the 
assertion. 
 (3) Assertion is a true statement, but Reason is false. 
 (4) Both Assertion and Reason are false statements.  
 
32. When a charged particle passes through an electric field, which among the following 
properties change? 
 (I) mass (II) charge 
 (III) velocity (IV) momentum 
 
 (1) II & III (2) only III 
 (3) III & IV (4) I, III & IV 
 
 
 
33. A ray of light in air is incident on an equilateral glass prism at an angle ?
i
 to the normal. After 
refraction, the light travelled parallel to the base of prism and emerged in air at an angle ?
c
 to 
the normal. If the angle between the incident and the emergent rays is 60°, then the 
refractive index of glass with respect to air is 
 (1) 1.33 (2) 1.5 
 (3) 1.73 (4) 1.66 
 
34. You are standing on the shore of a lake. You spot a fish swimming below the lake surface. 
You want to kill the fish first by throwing a spear and next, by pointing a high-power laser 
torch. How should you aim the spear and torch, respectively, from the options given below? 
 (I) above the apparent position of the fish 
 (II) below the apparent position of the fish 
 (III) directly at the apparent position of the fish 
 (1) SPEAR : II   ;   LASER : III (2) SPEAR : I    ;   LASER : II 
 (3) SPEAR : II   ;   LASER : II (4) SPEAR : III  ;   LASER : III 
 
35. A beam of light coming from a rarer medium is partially reflected from the surface of a 
denser medium and partially refracted into the denser medium. If the reflected and the 
refracted rays are perpendicular to each other and the ratio of the refractive indices of 
denser and rarer medium is 3, the angle of refraction will be 
 (1) 60° (2) 30° 
 (3) 45° (4) 41.5° 
 
36. A person can see clearly only the objects situated in the range of 50 cm to 300 cm. He went 
to an Optometrist who prescribed him a lens of certain power to increase the maximum 
distance of his vision to infinity, i.e. it corrected the near – sightedness. However, upon using 
the prescribed lens the person discovered that the near point of his vision has shifted from 
50 cm  to a distance “d”. What is the value of d?  
 (1) 60 cm  (2) 100 cm 
 (3) 40 cm (4) 500 cm  
 
37. A ball of mass m is thrown from a height h with a speed v. For what initial direction of the ball 
will its speed on hitting the ground be maximum? 
 (1) horizontally   
 (2) vertically downwards  
 (3) at an angle of 
o
45 from the vertical in the downward direction  
 (4) speed does not depend on the direction in which the ball is thrown    
 
38. A beaker is filled with two non – mixing liquids. The lower liquid has density twice that of the 
upper one. A cylinder of height h floats with one – fourth of its height submerged in the lower 
liquid and half of its height submerged in the upper liquid. Another beaker is filled with the 
denser of the two liquids alone. If the same  cylinder is kept in the second beaker, the height 
of the submerged position would be.  
 (1) h  (2) 
3h
4
 
 (3) 
h
2
 (4) 
h
4
 
 
39. A spring – loaded toy sits at rest on horizontal frictionless surface. When the spring releases, 
the toy breaks into three equal – mass  pieces A, B and C, which slide along the surface. 
Piece A moves off in the negative x – direction, while piece B moves off in the negative y 
direction. Which of the three pieces is moving the fastest?   
 (1) A (2) B 
 (3) C (4) They move with identical speeds