National Level Solved Paper (SAT) - 2013-14 | NTSE for Class 10 PDF Download

 Page 1


   
 
  
NTSE – II-2014 
SCHOLASTIC ABILITY TEST  
(FOR STUDENTS OF CLASS – X) 
 
1. Which one of the following statements is NOT true about evolution? 
 (1) Evolution leads to generation of diverse forms of life 
 (2) Time dating and fossil studies help in understanding of evolution 
 (3) Evolution is not always progressive series of changes that occur in organism  
 (4) Human beings have not evolved from chimpanzees. 
1. 4    
Sol. Human beings are evolved from chimpanzees as per organic evolution. 
 
2. Which one of the following is known as energy currency of cell? 
 (1) Adenosine diphosphate (2) Adenosine triphosphate 
 (3) Pyruvate (4) Glucose 
2. 2   
Sol. Adenosine Tri phosphate is known as energy currency of cell because of Adenine and 
phosphate. 
 
3. An analysis of soil sample revealed 0.1 mg of a pesticide and 1 mg of the same pesticide 
was found in grains. However in the adipose tissue of birds the concentration was 2 mg. 
The reason for this is the phenomenon known as 
 (1) Bio-absorption (2) Bio-translocation 
 (3) Bio-magnification (4) Bio-multiplication 
3. 3  
Sol. Concentration of Nutrients increases in each level of food chain causes Biomagnification.  
 
4. Diseases that spreads by vector such as mosquitoes are 
 (1) Encephalitis and Malaria (2) Syphilis and AIDS 
  (3) Tuberculosis and sleeping sickness (4) Kala-azar and SARS 
4. 1   
Sol. Vectors of encephalitis is culex mosquito and Malaria is female Anapheles. 
 
5. Which one of the following is correct route for passage of sperms? 
 (1) Testes ? scrotum ? vasdeferens ? urethra ?penis 
 (2) Scrotum ? testes ? urethra ? vasdeferens ? penis 
 (3) Testes ? vasdeferens ? urethra ? seminal vesicles 
 (4) Testes ? vasdeferens ? urethra ? penis 
5. 4   
Sol. Correct route of movement of sperms in male reproductive tract is testes ? Vas deferens ? 
urethra ? penis. 
 
6. Suggest which among the following is NOT a function attributed to endoplasmic reticulum 
 (1) Detoxification of poisons and drugs 
 (2) Digestion/egestion of foreign materials outside the cell 
 (3) Manufacture of fat and lipid molecules 
 (4) Biogenesis of membranes 
6. 2    
Sol. Digestion / egestion of foreign materials outside the cell is done by digestive bag 
(Lysosome)  
 
7. In nitrogen cycle, atmospheric nitrogen is fixed by bacteria and converted into ammonia. 
Ammonia is further converted into other forms of nitrogen. At the end of the cycle it returns 
to the atmosphere by the process of : 
 (1) Ammonification (2) Nitrification 
 (3) Denitrification (4) Assimilation 
Page 2


   
 
  
NTSE – II-2014 
SCHOLASTIC ABILITY TEST  
(FOR STUDENTS OF CLASS – X) 
 
1. Which one of the following statements is NOT true about evolution? 
 (1) Evolution leads to generation of diverse forms of life 
 (2) Time dating and fossil studies help in understanding of evolution 
 (3) Evolution is not always progressive series of changes that occur in organism  
 (4) Human beings have not evolved from chimpanzees. 
1. 4    
Sol. Human beings are evolved from chimpanzees as per organic evolution. 
 
2. Which one of the following is known as energy currency of cell? 
 (1) Adenosine diphosphate (2) Adenosine triphosphate 
 (3) Pyruvate (4) Glucose 
2. 2   
Sol. Adenosine Tri phosphate is known as energy currency of cell because of Adenine and 
phosphate. 
 
3. An analysis of soil sample revealed 0.1 mg of a pesticide and 1 mg of the same pesticide 
was found in grains. However in the adipose tissue of birds the concentration was 2 mg. 
The reason for this is the phenomenon known as 
 (1) Bio-absorption (2) Bio-translocation 
 (3) Bio-magnification (4) Bio-multiplication 
3. 3  
Sol. Concentration of Nutrients increases in each level of food chain causes Biomagnification.  
 
4. Diseases that spreads by vector such as mosquitoes are 
 (1) Encephalitis and Malaria (2) Syphilis and AIDS 
  (3) Tuberculosis and sleeping sickness (4) Kala-azar and SARS 
4. 1   
Sol. Vectors of encephalitis is culex mosquito and Malaria is female Anapheles. 
 
5. Which one of the following is correct route for passage of sperms? 
 (1) Testes ? scrotum ? vasdeferens ? urethra ?penis 
 (2) Scrotum ? testes ? urethra ? vasdeferens ? penis 
 (3) Testes ? vasdeferens ? urethra ? seminal vesicles 
 (4) Testes ? vasdeferens ? urethra ? penis 
5. 4   
Sol. Correct route of movement of sperms in male reproductive tract is testes ? Vas deferens ? 
urethra ? penis. 
 
6. Suggest which among the following is NOT a function attributed to endoplasmic reticulum 
 (1) Detoxification of poisons and drugs 
 (2) Digestion/egestion of foreign materials outside the cell 
 (3) Manufacture of fat and lipid molecules 
 (4) Biogenesis of membranes 
6. 2    
Sol. Digestion / egestion of foreign materials outside the cell is done by digestive bag 
(Lysosome)  
 
7. In nitrogen cycle, atmospheric nitrogen is fixed by bacteria and converted into ammonia. 
Ammonia is further converted into other forms of nitrogen. At the end of the cycle it returns 
to the atmosphere by the process of : 
 (1) Ammonification (2) Nitrification 
 (3) Denitrification (4) Assimilation 
   
 
  
7. 3   
Sol. Change of nitrates and nitrites in the form of nitrogen  is known as denitirification done by 
pseudomonas bacteria.    
 
8. Cell organelles that are involved in the waste disposal system of the cell are : 
 (1) Golgi apparatus (2) Lysosomes 
 (3) Chromosomes (4) Ribosomes 
8. 2   
Sol. Lysosomes are also known as cellular sacvanger or cellular housekeeper. 
 
9. Sequence of events which occur in a reflex action are 
 (1) Receptor ? motor neuron ? CNS ? sensory neuron ? effector muscle    
 (2) Effector muscle ? CNS ? sensory nerve ? sensory organ 
 (3) CNS ? sensory neuron ? motor neuron ? effector muscle 
 (4) Receptor organ ? sensory neuron ? CNS ? motor neuron ? effector muscle  
9. 4   
Sol. Path of reflex arc is Receptor ? sensory neuron ? CNS ? motor Neuron ? effector muscles. 
 
10. Movement of food in digestive tract is due to 
 (1) concentration gradient (2) secretions 
 (3) peristalsis (4) villi 
10. 3   
Sol. Movement of food in digestive tract takes place by the contraction and relaxation of muscles 
that is known as peristalsis or peristaltic movement. 
 
11. A pea plant with round green (RRyy) pea seed is crossed another pea plant with wrinkled 
yellow (rrYY) seeds. What would be the nature of seed in the first generation (F
1
 
generation)? 
 (1) Round green (2) Wrinkled green 
 (3) Wrinkled yellow (4) Round yellow 
11. 4    
Sol. Law of Dominance given by Mendal. 
 
12. Some organisms are sensitive to different levels of air pollution and are used as pollution-
indicators. Suggest which among the following fits into the category. 
 (1) Fungi (2) Fresh water algae 
 (3) Bacteria (4) Lichens 
12. 4   
Sol. Lichens are indicator of air pollution. 
 
13. A group of laboratory mice having tails are bred together and their progeny studied. The 
progeny had tails. However, scientist surgically removed the tails of the progeny and again 
bred them for four successive generations. What do you think would be the nature of the 
new progeny? 
 (1) All mice born will have tails  
 (2) All mice born will have no tails 
 (3) The ratio of tail less to tailed mice will be 1 : 3 
 (4) The ratio of tail less to tailed mice will be 1 : 4 
13. 1   
Sol. It is because inheritens of acquired characters does not takes place in very short period of 
time.  
 
14. Which of the following statements is NOT correct? 
 (1) Tendons are tissues with great strength and flexibility 
 (2) Bones are connected to each other by tendons 
 (3) Cartilage smoothens bone surface at joints 
 (4) Tendons connect muscles to bones  
Page 3


   
 
  
NTSE – II-2014 
SCHOLASTIC ABILITY TEST  
(FOR STUDENTS OF CLASS – X) 
 
1. Which one of the following statements is NOT true about evolution? 
 (1) Evolution leads to generation of diverse forms of life 
 (2) Time dating and fossil studies help in understanding of evolution 
 (3) Evolution is not always progressive series of changes that occur in organism  
 (4) Human beings have not evolved from chimpanzees. 
1. 4    
Sol. Human beings are evolved from chimpanzees as per organic evolution. 
 
2. Which one of the following is known as energy currency of cell? 
 (1) Adenosine diphosphate (2) Adenosine triphosphate 
 (3) Pyruvate (4) Glucose 
2. 2   
Sol. Adenosine Tri phosphate is known as energy currency of cell because of Adenine and 
phosphate. 
 
3. An analysis of soil sample revealed 0.1 mg of a pesticide and 1 mg of the same pesticide 
was found in grains. However in the adipose tissue of birds the concentration was 2 mg. 
The reason for this is the phenomenon known as 
 (1) Bio-absorption (2) Bio-translocation 
 (3) Bio-magnification (4) Bio-multiplication 
3. 3  
Sol. Concentration of Nutrients increases in each level of food chain causes Biomagnification.  
 
4. Diseases that spreads by vector such as mosquitoes are 
 (1) Encephalitis and Malaria (2) Syphilis and AIDS 
  (3) Tuberculosis and sleeping sickness (4) Kala-azar and SARS 
4. 1   
Sol. Vectors of encephalitis is culex mosquito and Malaria is female Anapheles. 
 
5. Which one of the following is correct route for passage of sperms? 
 (1) Testes ? scrotum ? vasdeferens ? urethra ?penis 
 (2) Scrotum ? testes ? urethra ? vasdeferens ? penis 
 (3) Testes ? vasdeferens ? urethra ? seminal vesicles 
 (4) Testes ? vasdeferens ? urethra ? penis 
5. 4   
Sol. Correct route of movement of sperms in male reproductive tract is testes ? Vas deferens ? 
urethra ? penis. 
 
6. Suggest which among the following is NOT a function attributed to endoplasmic reticulum 
 (1) Detoxification of poisons and drugs 
 (2) Digestion/egestion of foreign materials outside the cell 
 (3) Manufacture of fat and lipid molecules 
 (4) Biogenesis of membranes 
6. 2    
Sol. Digestion / egestion of foreign materials outside the cell is done by digestive bag 
(Lysosome)  
 
7. In nitrogen cycle, atmospheric nitrogen is fixed by bacteria and converted into ammonia. 
Ammonia is further converted into other forms of nitrogen. At the end of the cycle it returns 
to the atmosphere by the process of : 
 (1) Ammonification (2) Nitrification 
 (3) Denitrification (4) Assimilation 
   
 
  
7. 3   
Sol. Change of nitrates and nitrites in the form of nitrogen  is known as denitirification done by 
pseudomonas bacteria.    
 
8. Cell organelles that are involved in the waste disposal system of the cell are : 
 (1) Golgi apparatus (2) Lysosomes 
 (3) Chromosomes (4) Ribosomes 
8. 2   
Sol. Lysosomes are also known as cellular sacvanger or cellular housekeeper. 
 
9. Sequence of events which occur in a reflex action are 
 (1) Receptor ? motor neuron ? CNS ? sensory neuron ? effector muscle    
 (2) Effector muscle ? CNS ? sensory nerve ? sensory organ 
 (3) CNS ? sensory neuron ? motor neuron ? effector muscle 
 (4) Receptor organ ? sensory neuron ? CNS ? motor neuron ? effector muscle  
9. 4   
Sol. Path of reflex arc is Receptor ? sensory neuron ? CNS ? motor Neuron ? effector muscles. 
 
10. Movement of food in digestive tract is due to 
 (1) concentration gradient (2) secretions 
 (3) peristalsis (4) villi 
10. 3   
Sol. Movement of food in digestive tract takes place by the contraction and relaxation of muscles 
that is known as peristalsis or peristaltic movement. 
 
11. A pea plant with round green (RRyy) pea seed is crossed another pea plant with wrinkled 
yellow (rrYY) seeds. What would be the nature of seed in the first generation (F
1
 
generation)? 
 (1) Round green (2) Wrinkled green 
 (3) Wrinkled yellow (4) Round yellow 
11. 4    
Sol. Law of Dominance given by Mendal. 
 
12. Some organisms are sensitive to different levels of air pollution and are used as pollution-
indicators. Suggest which among the following fits into the category. 
 (1) Fungi (2) Fresh water algae 
 (3) Bacteria (4) Lichens 
12. 4   
Sol. Lichens are indicator of air pollution. 
 
13. A group of laboratory mice having tails are bred together and their progeny studied. The 
progeny had tails. However, scientist surgically removed the tails of the progeny and again 
bred them for four successive generations. What do you think would be the nature of the 
new progeny? 
 (1) All mice born will have tails  
 (2) All mice born will have no tails 
 (3) The ratio of tail less to tailed mice will be 1 : 3 
 (4) The ratio of tail less to tailed mice will be 1 : 4 
13. 1   
Sol. It is because inheritens of acquired characters does not takes place in very short period of 
time.  
 
14. Which of the following statements is NOT correct? 
 (1) Tendons are tissues with great strength and flexibility 
 (2) Bones are connected to each other by tendons 
 (3) Cartilage smoothens bone surface at joints 
 (4) Tendons connect muscles to bones  
   
 
  
14. 2   
Sol. Bones are connected to each other by ligaments. 
 
15. Which of the following are the correct examples of matter? 
 (1) Glass bottle, water and noise (2) Air, wood and vaccum 
 (3) Silver foil, hot air and chalk (4) Sand, oxygen and light flash 
15. 3 
Sol. All three are material object  
  
16. Two identical beakers labeled as (X) and (Y) contain 100 cm
3
 of water each at 20
o
C. To the 
water in the beaker(X) 100 g of water at 0
o
C was added and stirred to mix thoroughly. To the 
beaker(Y) 100 g of ice at 0
o
C was added and stirred till it melted into water. The water in the 
beaker(Y) will be  
 (1) hotter than water in beaker X (B) colder than water in beaker X 
 (3) heavier than water in beaker X  (D) lighter  than water in beaker X 
16. 2 
Sol. Due to absorption of latent heat of fusion, beaker Y has water colder than water in X 
 
17. At 283 K a saturated solution of solid X can be prepared by dissolving 21.0 g of it in 100 g of 
water. The maximum amount of X which can be dissolved in 100 g of water at 313 K is 62.0 
g. An attempt is made to dissolved 50.0 g of X in 100 g of water at 313 K 
 (A) All the 50.0 g of X will dissolve at 313 K  
 (B) At 313 K 29.0 g of X will remain undissolved 
 (C) Solubility of X decrease with increase of temperature   
 (D) On cooling the solution of X from 313 K to 283 K more than 21.0 g of X will crystallize out 
 Which of the above statements are correct? 
 (1) A and B (2) A and D 
 (3) B and C (4) A, C and D 
17. 2 
Sol. On decreasing temperature solubility of solid decreases, so excess solute will crystallilze. 
 
18. Two elements A and B contain 13 and 8 proton respectively. If the number of neutrons in 
them happen to be 14 and 8 respectively, the formula unit mass for the compound between 
A and B unit would be 
 (1) 43 (2) 75 
 (3) 102 (4) 112 
18. 3 
Sol.       P    n        P    n  
 A   13   14 B   8     8 
           27         16 
 A = Al                       B = O  
 Al
2
O
3
  = 27 + 27 + 48 = 102 
 
19. The reaction of burning carbon in oxygen is represented by the equation  
 ? ? ? ? ? ?
2 2
C s O g CO g Heat Light ? ? ? ? ? ? 
 When 9.0 g of solid carbon is burnt in 16.0 g of oxygen gas, 22.0 g of carbon dioxide is 
produced. The mass of carbon dioxide gas formed on burning of 3.0 g of carbon in 32.0 g of 
oxygen would be (Note: Atomic mass of C = 12.0 u, O = 16.0 u) 
 (1) 6.60 g (2) 7.33 g 
 (3) 8.25 g (4) 11.00 g 
19. 4 
Sol. 
2 2
C O CO ? ? ? ? 
 12 g   32 g   ? 44 g 
 9 g     16 g   ? 229 
 3 g     32 g   ?  
Page 4


   
 
  
NTSE – II-2014 
SCHOLASTIC ABILITY TEST  
(FOR STUDENTS OF CLASS – X) 
 
1. Which one of the following statements is NOT true about evolution? 
 (1) Evolution leads to generation of diverse forms of life 
 (2) Time dating and fossil studies help in understanding of evolution 
 (3) Evolution is not always progressive series of changes that occur in organism  
 (4) Human beings have not evolved from chimpanzees. 
1. 4    
Sol. Human beings are evolved from chimpanzees as per organic evolution. 
 
2. Which one of the following is known as energy currency of cell? 
 (1) Adenosine diphosphate (2) Adenosine triphosphate 
 (3) Pyruvate (4) Glucose 
2. 2   
Sol. Adenosine Tri phosphate is known as energy currency of cell because of Adenine and 
phosphate. 
 
3. An analysis of soil sample revealed 0.1 mg of a pesticide and 1 mg of the same pesticide 
was found in grains. However in the adipose tissue of birds the concentration was 2 mg. 
The reason for this is the phenomenon known as 
 (1) Bio-absorption (2) Bio-translocation 
 (3) Bio-magnification (4) Bio-multiplication 
3. 3  
Sol. Concentration of Nutrients increases in each level of food chain causes Biomagnification.  
 
4. Diseases that spreads by vector such as mosquitoes are 
 (1) Encephalitis and Malaria (2) Syphilis and AIDS 
  (3) Tuberculosis and sleeping sickness (4) Kala-azar and SARS 
4. 1   
Sol. Vectors of encephalitis is culex mosquito and Malaria is female Anapheles. 
 
5. Which one of the following is correct route for passage of sperms? 
 (1) Testes ? scrotum ? vasdeferens ? urethra ?penis 
 (2) Scrotum ? testes ? urethra ? vasdeferens ? penis 
 (3) Testes ? vasdeferens ? urethra ? seminal vesicles 
 (4) Testes ? vasdeferens ? urethra ? penis 
5. 4   
Sol. Correct route of movement of sperms in male reproductive tract is testes ? Vas deferens ? 
urethra ? penis. 
 
6. Suggest which among the following is NOT a function attributed to endoplasmic reticulum 
 (1) Detoxification of poisons and drugs 
 (2) Digestion/egestion of foreign materials outside the cell 
 (3) Manufacture of fat and lipid molecules 
 (4) Biogenesis of membranes 
6. 2    
Sol. Digestion / egestion of foreign materials outside the cell is done by digestive bag 
(Lysosome)  
 
7. In nitrogen cycle, atmospheric nitrogen is fixed by bacteria and converted into ammonia. 
Ammonia is further converted into other forms of nitrogen. At the end of the cycle it returns 
to the atmosphere by the process of : 
 (1) Ammonification (2) Nitrification 
 (3) Denitrification (4) Assimilation 
   
 
  
7. 3   
Sol. Change of nitrates and nitrites in the form of nitrogen  is known as denitirification done by 
pseudomonas bacteria.    
 
8. Cell organelles that are involved in the waste disposal system of the cell are : 
 (1) Golgi apparatus (2) Lysosomes 
 (3) Chromosomes (4) Ribosomes 
8. 2   
Sol. Lysosomes are also known as cellular sacvanger or cellular housekeeper. 
 
9. Sequence of events which occur in a reflex action are 
 (1) Receptor ? motor neuron ? CNS ? sensory neuron ? effector muscle    
 (2) Effector muscle ? CNS ? sensory nerve ? sensory organ 
 (3) CNS ? sensory neuron ? motor neuron ? effector muscle 
 (4) Receptor organ ? sensory neuron ? CNS ? motor neuron ? effector muscle  
9. 4   
Sol. Path of reflex arc is Receptor ? sensory neuron ? CNS ? motor Neuron ? effector muscles. 
 
10. Movement of food in digestive tract is due to 
 (1) concentration gradient (2) secretions 
 (3) peristalsis (4) villi 
10. 3   
Sol. Movement of food in digestive tract takes place by the contraction and relaxation of muscles 
that is known as peristalsis or peristaltic movement. 
 
11. A pea plant with round green (RRyy) pea seed is crossed another pea plant with wrinkled 
yellow (rrYY) seeds. What would be the nature of seed in the first generation (F
1
 
generation)? 
 (1) Round green (2) Wrinkled green 
 (3) Wrinkled yellow (4) Round yellow 
11. 4    
Sol. Law of Dominance given by Mendal. 
 
12. Some organisms are sensitive to different levels of air pollution and are used as pollution-
indicators. Suggest which among the following fits into the category. 
 (1) Fungi (2) Fresh water algae 
 (3) Bacteria (4) Lichens 
12. 4   
Sol. Lichens are indicator of air pollution. 
 
13. A group of laboratory mice having tails are bred together and their progeny studied. The 
progeny had tails. However, scientist surgically removed the tails of the progeny and again 
bred them for four successive generations. What do you think would be the nature of the 
new progeny? 
 (1) All mice born will have tails  
 (2) All mice born will have no tails 
 (3) The ratio of tail less to tailed mice will be 1 : 3 
 (4) The ratio of tail less to tailed mice will be 1 : 4 
13. 1   
Sol. It is because inheritens of acquired characters does not takes place in very short period of 
time.  
 
14. Which of the following statements is NOT correct? 
 (1) Tendons are tissues with great strength and flexibility 
 (2) Bones are connected to each other by tendons 
 (3) Cartilage smoothens bone surface at joints 
 (4) Tendons connect muscles to bones  
   
 
  
14. 2   
Sol. Bones are connected to each other by ligaments. 
 
15. Which of the following are the correct examples of matter? 
 (1) Glass bottle, water and noise (2) Air, wood and vaccum 
 (3) Silver foil, hot air and chalk (4) Sand, oxygen and light flash 
15. 3 
Sol. All three are material object  
  
16. Two identical beakers labeled as (X) and (Y) contain 100 cm
3
 of water each at 20
o
C. To the 
water in the beaker(X) 100 g of water at 0
o
C was added and stirred to mix thoroughly. To the 
beaker(Y) 100 g of ice at 0
o
C was added and stirred till it melted into water. The water in the 
beaker(Y) will be  
 (1) hotter than water in beaker X (B) colder than water in beaker X 
 (3) heavier than water in beaker X  (D) lighter  than water in beaker X 
16. 2 
Sol. Due to absorption of latent heat of fusion, beaker Y has water colder than water in X 
 
17. At 283 K a saturated solution of solid X can be prepared by dissolving 21.0 g of it in 100 g of 
water. The maximum amount of X which can be dissolved in 100 g of water at 313 K is 62.0 
g. An attempt is made to dissolved 50.0 g of X in 100 g of water at 313 K 
 (A) All the 50.0 g of X will dissolve at 313 K  
 (B) At 313 K 29.0 g of X will remain undissolved 
 (C) Solubility of X decrease with increase of temperature   
 (D) On cooling the solution of X from 313 K to 283 K more than 21.0 g of X will crystallize out 
 Which of the above statements are correct? 
 (1) A and B (2) A and D 
 (3) B and C (4) A, C and D 
17. 2 
Sol. On decreasing temperature solubility of solid decreases, so excess solute will crystallilze. 
 
18. Two elements A and B contain 13 and 8 proton respectively. If the number of neutrons in 
them happen to be 14 and 8 respectively, the formula unit mass for the compound between 
A and B unit would be 
 (1) 43 (2) 75 
 (3) 102 (4) 112 
18. 3 
Sol.       P    n        P    n  
 A   13   14 B   8     8 
           27         16 
 A = Al                       B = O  
 Al
2
O
3
  = 27 + 27 + 48 = 102 
 
19. The reaction of burning carbon in oxygen is represented by the equation  
 ? ? ? ? ? ?
2 2
C s O g CO g Heat Light ? ? ? ? ? ? 
 When 9.0 g of solid carbon is burnt in 16.0 g of oxygen gas, 22.0 g of carbon dioxide is 
produced. The mass of carbon dioxide gas formed on burning of 3.0 g of carbon in 32.0 g of 
oxygen would be (Note: Atomic mass of C = 12.0 u, O = 16.0 u) 
 (1) 6.60 g (2) 7.33 g 
 (3) 8.25 g (4) 11.00 g 
19. 4 
Sol. 
2 2
C O CO ? ? ? ? 
 12 g   32 g   ? 44 g 
 9 g     16 g   ? 229 
 3 g     32 g   ?  
   
 
  
 For 3 g carbon = 
44
3 11g
12
? ? 
 
20. An atom of an element(X) has its K, L and M shells filled with some electrons. It reacts with 
sodium metal to form a compound NaX. The number of electrons in the M shell of the 
atom(X) will be 
 (1) Eight (2) Seven 
 (3) Two  (4) One 
20. 2 
Sol. NaX 
 X has valency = 1 
 Na
+
X
–
 
 X has seven valence electrons 
 
21. Oxygen gas reacts with hydrogen to produce water. The reaction is represented by the 
equation 
 ? ? ? ? ? ?
2 2 2
O g H g H O g ? ? ? ? 
 The above reaction is an example of  
 (a) Oxidation of hydrogen (b) Reduction of oxygen 
 (c) Reduction of hydrogen (d) Redox reaction 
 (1) a, b and c (2) b, c and d 
 (3) a, c, and d (4) a, b and d 
21. 4 
Sol. 
0 0 1 2
2
2 2
O H H O
? ?
? ? ? ?
Reduction
Oxidation
 
 
22. Match the items of column – I with the items of column – II 
Column – I Column – II 
(a) 
4 3 3 4 2
NH OH CH COOH CH COONH H O ? ? ? ? ? 
(i) Thermal decomposition 
(b) 
2
2AgBr 2 Ag Br ? ? ? ? 
(ii) Thermit reaction 
(c) 
3 2
ZnCO ZnO CO ? ? ? ? 
(iii) Photochemical reaction 
(d) 
2 3 2 3
2 Al Fe O 2Fe Al O ? ? ? ? ? 
(iv) Neutralization reaction 
 (1) (d)ii  (c)iv  (b)i   (a)iii (2) (c)i    (a)ii   (d)iii   (b)iv 
 (3) (b)ii  (d)i   (a)iii  (c)iv (4) (a)iv  (b)iii  (c)i     (d)ii 
22. 4 
Sol. (a) 
4 3 3 4 2
NH OH CH COOH CH COONH H O ? ? ? ? ? - Neutralization reaction 
 (b) 
2
2AgBr 2Ag Br ? ? ? ? - Photochemical reaction 
 (c) 
3 2
ZnCO ZnO CO ? ? ? ? - Thermal decomposition 
 (d) 
2 3 2 3
2Al Fe O 2Fe Al O ? ? ? ? ? 
- Thermit reaction 
 
23. Which of the following represents the correct order of the acidic strength for equimolar 
aqueous solution of HCl, H
2
SO
4
, NH
4
OH and NaOH 
 (1) HCl < NH
4
OH < NaOH < H
2
SO
4
 (2) NH
4
OH < NaOH < H
2
SO
4
 < HCl 
 (3) HCl < H
2
SO
4
 < NH
4
OH < NaOH (4) NaOH < NH
4
OH < HCl < H
2
SO
4
 
23. 4 
Sol. NaOH   < NH
4
OH  < HCl    <   H
2
SO
4
 
 pH = 11   pH = 10  pH = 3   pH = 2.73  
 
Page 5


   
 
  
NTSE – II-2014 
SCHOLASTIC ABILITY TEST  
(FOR STUDENTS OF CLASS – X) 
 
1. Which one of the following statements is NOT true about evolution? 
 (1) Evolution leads to generation of diverse forms of life 
 (2) Time dating and fossil studies help in understanding of evolution 
 (3) Evolution is not always progressive series of changes that occur in organism  
 (4) Human beings have not evolved from chimpanzees. 
1. 4    
Sol. Human beings are evolved from chimpanzees as per organic evolution. 
 
2. Which one of the following is known as energy currency of cell? 
 (1) Adenosine diphosphate (2) Adenosine triphosphate 
 (3) Pyruvate (4) Glucose 
2. 2   
Sol. Adenosine Tri phosphate is known as energy currency of cell because of Adenine and 
phosphate. 
 
3. An analysis of soil sample revealed 0.1 mg of a pesticide and 1 mg of the same pesticide 
was found in grains. However in the adipose tissue of birds the concentration was 2 mg. 
The reason for this is the phenomenon known as 
 (1) Bio-absorption (2) Bio-translocation 
 (3) Bio-magnification (4) Bio-multiplication 
3. 3  
Sol. Concentration of Nutrients increases in each level of food chain causes Biomagnification.  
 
4. Diseases that spreads by vector such as mosquitoes are 
 (1) Encephalitis and Malaria (2) Syphilis and AIDS 
  (3) Tuberculosis and sleeping sickness (4) Kala-azar and SARS 
4. 1   
Sol. Vectors of encephalitis is culex mosquito and Malaria is female Anapheles. 
 
5. Which one of the following is correct route for passage of sperms? 
 (1) Testes ? scrotum ? vasdeferens ? urethra ?penis 
 (2) Scrotum ? testes ? urethra ? vasdeferens ? penis 
 (3) Testes ? vasdeferens ? urethra ? seminal vesicles 
 (4) Testes ? vasdeferens ? urethra ? penis 
5. 4   
Sol. Correct route of movement of sperms in male reproductive tract is testes ? Vas deferens ? 
urethra ? penis. 
 
6. Suggest which among the following is NOT a function attributed to endoplasmic reticulum 
 (1) Detoxification of poisons and drugs 
 (2) Digestion/egestion of foreign materials outside the cell 
 (3) Manufacture of fat and lipid molecules 
 (4) Biogenesis of membranes 
6. 2    
Sol. Digestion / egestion of foreign materials outside the cell is done by digestive bag 
(Lysosome)  
 
7. In nitrogen cycle, atmospheric nitrogen is fixed by bacteria and converted into ammonia. 
Ammonia is further converted into other forms of nitrogen. At the end of the cycle it returns 
to the atmosphere by the process of : 
 (1) Ammonification (2) Nitrification 
 (3) Denitrification (4) Assimilation 
   
 
  
7. 3   
Sol. Change of nitrates and nitrites in the form of nitrogen  is known as denitirification done by 
pseudomonas bacteria.    
 
8. Cell organelles that are involved in the waste disposal system of the cell are : 
 (1) Golgi apparatus (2) Lysosomes 
 (3) Chromosomes (4) Ribosomes 
8. 2   
Sol. Lysosomes are also known as cellular sacvanger or cellular housekeeper. 
 
9. Sequence of events which occur in a reflex action are 
 (1) Receptor ? motor neuron ? CNS ? sensory neuron ? effector muscle    
 (2) Effector muscle ? CNS ? sensory nerve ? sensory organ 
 (3) CNS ? sensory neuron ? motor neuron ? effector muscle 
 (4) Receptor organ ? sensory neuron ? CNS ? motor neuron ? effector muscle  
9. 4   
Sol. Path of reflex arc is Receptor ? sensory neuron ? CNS ? motor Neuron ? effector muscles. 
 
10. Movement of food in digestive tract is due to 
 (1) concentration gradient (2) secretions 
 (3) peristalsis (4) villi 
10. 3   
Sol. Movement of food in digestive tract takes place by the contraction and relaxation of muscles 
that is known as peristalsis or peristaltic movement. 
 
11. A pea plant with round green (RRyy) pea seed is crossed another pea plant with wrinkled 
yellow (rrYY) seeds. What would be the nature of seed in the first generation (F
1
 
generation)? 
 (1) Round green (2) Wrinkled green 
 (3) Wrinkled yellow (4) Round yellow 
11. 4    
Sol. Law of Dominance given by Mendal. 
 
12. Some organisms are sensitive to different levels of air pollution and are used as pollution-
indicators. Suggest which among the following fits into the category. 
 (1) Fungi (2) Fresh water algae 
 (3) Bacteria (4) Lichens 
12. 4   
Sol. Lichens are indicator of air pollution. 
 
13. A group of laboratory mice having tails are bred together and their progeny studied. The 
progeny had tails. However, scientist surgically removed the tails of the progeny and again 
bred them for four successive generations. What do you think would be the nature of the 
new progeny? 
 (1) All mice born will have tails  
 (2) All mice born will have no tails 
 (3) The ratio of tail less to tailed mice will be 1 : 3 
 (4) The ratio of tail less to tailed mice will be 1 : 4 
13. 1   
Sol. It is because inheritens of acquired characters does not takes place in very short period of 
time.  
 
14. Which of the following statements is NOT correct? 
 (1) Tendons are tissues with great strength and flexibility 
 (2) Bones are connected to each other by tendons 
 (3) Cartilage smoothens bone surface at joints 
 (4) Tendons connect muscles to bones  
   
 
  
14. 2   
Sol. Bones are connected to each other by ligaments. 
 
15. Which of the following are the correct examples of matter? 
 (1) Glass bottle, water and noise (2) Air, wood and vaccum 
 (3) Silver foil, hot air and chalk (4) Sand, oxygen and light flash 
15. 3 
Sol. All three are material object  
  
16. Two identical beakers labeled as (X) and (Y) contain 100 cm
3
 of water each at 20
o
C. To the 
water in the beaker(X) 100 g of water at 0
o
C was added and stirred to mix thoroughly. To the 
beaker(Y) 100 g of ice at 0
o
C was added and stirred till it melted into water. The water in the 
beaker(Y) will be  
 (1) hotter than water in beaker X (B) colder than water in beaker X 
 (3) heavier than water in beaker X  (D) lighter  than water in beaker X 
16. 2 
Sol. Due to absorption of latent heat of fusion, beaker Y has water colder than water in X 
 
17. At 283 K a saturated solution of solid X can be prepared by dissolving 21.0 g of it in 100 g of 
water. The maximum amount of X which can be dissolved in 100 g of water at 313 K is 62.0 
g. An attempt is made to dissolved 50.0 g of X in 100 g of water at 313 K 
 (A) All the 50.0 g of X will dissolve at 313 K  
 (B) At 313 K 29.0 g of X will remain undissolved 
 (C) Solubility of X decrease with increase of temperature   
 (D) On cooling the solution of X from 313 K to 283 K more than 21.0 g of X will crystallize out 
 Which of the above statements are correct? 
 (1) A and B (2) A and D 
 (3) B and C (4) A, C and D 
17. 2 
Sol. On decreasing temperature solubility of solid decreases, so excess solute will crystallilze. 
 
18. Two elements A and B contain 13 and 8 proton respectively. If the number of neutrons in 
them happen to be 14 and 8 respectively, the formula unit mass for the compound between 
A and B unit would be 
 (1) 43 (2) 75 
 (3) 102 (4) 112 
18. 3 
Sol.       P    n        P    n  
 A   13   14 B   8     8 
           27         16 
 A = Al                       B = O  
 Al
2
O
3
  = 27 + 27 + 48 = 102 
 
19. The reaction of burning carbon in oxygen is represented by the equation  
 ? ? ? ? ? ?
2 2
C s O g CO g Heat Light ? ? ? ? ? ? 
 When 9.0 g of solid carbon is burnt in 16.0 g of oxygen gas, 22.0 g of carbon dioxide is 
produced. The mass of carbon dioxide gas formed on burning of 3.0 g of carbon in 32.0 g of 
oxygen would be (Note: Atomic mass of C = 12.0 u, O = 16.0 u) 
 (1) 6.60 g (2) 7.33 g 
 (3) 8.25 g (4) 11.00 g 
19. 4 
Sol. 
2 2
C O CO ? ? ? ? 
 12 g   32 g   ? 44 g 
 9 g     16 g   ? 229 
 3 g     32 g   ?  
   
 
  
 For 3 g carbon = 
44
3 11g
12
? ? 
 
20. An atom of an element(X) has its K, L and M shells filled with some electrons. It reacts with 
sodium metal to form a compound NaX. The number of electrons in the M shell of the 
atom(X) will be 
 (1) Eight (2) Seven 
 (3) Two  (4) One 
20. 2 
Sol. NaX 
 X has valency = 1 
 Na
+
X
–
 
 X has seven valence electrons 
 
21. Oxygen gas reacts with hydrogen to produce water. The reaction is represented by the 
equation 
 ? ? ? ? ? ?
2 2 2
O g H g H O g ? ? ? ? 
 The above reaction is an example of  
 (a) Oxidation of hydrogen (b) Reduction of oxygen 
 (c) Reduction of hydrogen (d) Redox reaction 
 (1) a, b and c (2) b, c and d 
 (3) a, c, and d (4) a, b and d 
21. 4 
Sol. 
0 0 1 2
2
2 2
O H H O
? ?
? ? ? ?
Reduction
Oxidation
 
 
22. Match the items of column – I with the items of column – II 
Column – I Column – II 
(a) 
4 3 3 4 2
NH OH CH COOH CH COONH H O ? ? ? ? ? 
(i) Thermal decomposition 
(b) 
2
2AgBr 2 Ag Br ? ? ? ? 
(ii) Thermit reaction 
(c) 
3 2
ZnCO ZnO CO ? ? ? ? 
(iii) Photochemical reaction 
(d) 
2 3 2 3
2 Al Fe O 2Fe Al O ? ? ? ? ? 
(iv) Neutralization reaction 
 (1) (d)ii  (c)iv  (b)i   (a)iii (2) (c)i    (a)ii   (d)iii   (b)iv 
 (3) (b)ii  (d)i   (a)iii  (c)iv (4) (a)iv  (b)iii  (c)i     (d)ii 
22. 4 
Sol. (a) 
4 3 3 4 2
NH OH CH COOH CH COONH H O ? ? ? ? ? - Neutralization reaction 
 (b) 
2
2AgBr 2Ag Br ? ? ? ? - Photochemical reaction 
 (c) 
3 2
ZnCO ZnO CO ? ? ? ? - Thermal decomposition 
 (d) 
2 3 2 3
2Al Fe O 2Fe Al O ? ? ? ? ? 
- Thermit reaction 
 
23. Which of the following represents the correct order of the acidic strength for equimolar 
aqueous solution of HCl, H
2
SO
4
, NH
4
OH and NaOH 
 (1) HCl < NH
4
OH < NaOH < H
2
SO
4
 (2) NH
4
OH < NaOH < H
2
SO
4
 < HCl 
 (3) HCl < H
2
SO
4
 < NH
4
OH < NaOH (4) NaOH < NH
4
OH < HCl < H
2
SO
4
 
23. 4 
Sol. NaOH   < NH
4
OH  < HCl    <   H
2
SO
4
 
 pH = 11   pH = 10  pH = 3   pH = 2.73  
 
   
 
  
24. Metals like sodium, potassium, calcium and magnesium are extracted by electrolysis of their 
chlorides in molten state. These metals are not extracted by reducing of their oxides with 
carbon because 
 (a) reduction with carbon is very expensive  
 (b) carbon readily makes alloy with these metals 
 (c) carbon has less affinity for oxygen than these metals  
 (d) carbon is weaker reducing agent than these metals 
 (1) a and b  (2) b and c 
 (3) c and d  (4) d and a 
24. 3 
Sol. Carbon has less affinity for oxygen than these metals & carbon is weaker reducing agent 
than these metals 
 
25. A hydrocarbon has a molecular formula as C
6
H
12
. It does not react with hydrogen to give 
C
6
H
14
 nor does it react with chlorine to give C
6
H
12
Cl
2
. The hydrocarbon C
6
H
12
 is  
 (a) A saturated hydrocarbon  
 (b) An unsaturated hydrocarbon  
 (c) An open chain hydrocarbon 
 (d) a cyclo-alkane 
 (1) a and b  (2) c and d 
 (3) d and b  (4) a and d 
25. 4 
Sol. C
6
H
12
 
C
C
C
C
C
H
H
H
H
H
H
H H
H
H
H
H
 
 Is a saturated cyclo alkane which does not react with H
2
 of Cl
2 
 
26. An organic compound is a clear liquid having a molecular formula C
4
H
8
O.  It has an open 
chain structure. Without any carbon-carbon double bond. The compound can be 
 (a) an alcohol (b) an ester 
 (c) an aldehyde (d) a ketone 
 (1) a and b  (2) c and d 
 (3) b and d  (4) d and a 
26. 2 
Sol. 
? ?
4 8 3 2 2
C H O CH CH CH C H Bu tanol ? ? ? ? ? ? ?
3 2 3
CH CCH CH
O
O
 
2 – Butanone 
 
27. An element with atomic number 17 is placed in the group 17  of the long form periodic table. 
Element with atomic number 9 is placed above and with atomic number 35 is placed below 
it. Element with atomic number 16 is placed left and with atomic number 18 is placed right to 
it. Which of the following statements are correct? 
 (a) Valency of the element with atomic number 18 is zero  
 (b) Elements with same valency will have atomic number 16, 17 and 18 
 (c) Valency of elements with atomic number 9, 17 and 35 is one 
 (d) Element with atomic number 17 is more electronegative than element with atomic 
numbers 16 and 35 
 (1) a, b and c  (2) a, c and d  
 (3) b, c and d  (4) a, b and d