Class 10 NTSE Delhi - Question Papers SAT 2020-21

 Page 1


 
  
 
NTSE STAGE – I (DELHI STATE) 
 (2020 – 21)  
 (For Class – X) 
SCHOLASTIC APTITUDE TEST 
 
QUESTION PAPER 
 
PHYSICS 
 
101. The sound of same pitch and loudness are “distinguished from one another by their 
 (1) Wavelengths (2) Velocity 
 (3) Quality (4) Tones 
 
102. A water pumps lifts water from a level 10 m below the ground. The water is pumped at the 
rate of 30 kg/min with negligible velocity. Calculate the minimum power the pump should 
have to do this work. 
 (1) 49 J/s (2) 490 J/s 
 (3) 500 J/s (4) 48 J/s 
 
103. Six identical resistors connected between points A, B and C as 
shown in diagram. The equivalent resistance would be maximum 
between.  
 (1) A and B  
 (2) B and C 
 (3) A and C  
 (4) Option (1), (2) & (3) are correct.   
 
104. A particle of mass 0.3 kg is subjected to a force F = Kx with K = 15 N/m, what will be its 
acceleration if it is released from a point x = 20 cm. 
 (1) 1 m/s
2
 (2) 10 m/s
2
 
 (3) 100 m/s
2
 (4) 0.1 m/s
2
 
 
105. An object is moving in a straight line. The velocity time graph is 
as shown below. Then  
 (1) In part OA acceleration is increasing.   
 (2) In part AB acceleration is increasing. 
 (3) In part OA acceleration is decreasing.  
 (4) In part AB acceleration is decreasing.  
 
 
106. A force of 100 N acts on a body so that the body acquire a velocity of 10 m/s after some 
time. Now the force of 100 N is replaced by another force F which decelerates the body and 
body come to the rest then. 
 (1) F > 100 N (2) F < 100 N 
 (3) F = 100 N (4) All options are possible 
 
107. 2 points A and B are at electric potentials 10 V and 100 V respectively. A charge q is taken 
from A to B and 18 Joule of work is done. The value of q is 
 (1) 2 Coulomb (2) 0.2 Coulomb 
 (3) 20 Coulomb (4) 0.02 Coulomb 
 
108. Which of the following is NOT correct for magnetic filed lines? 
 (1) The direction of magnetic field lines outside the magnet is from north pole to south pole. 
 (2) The direction of magnetic field lines inside the magnet is from south pole to north pole. 
 (3) The degree of closeness of magnetic field lines tells the relatives strength of magnetic 
field. 
 (4) Magnetic field lines never form closed loop. 
Page 2


 
  
 
NTSE STAGE – I (DELHI STATE) 
 (2020 – 21)  
 (For Class – X) 
SCHOLASTIC APTITUDE TEST 
 
QUESTION PAPER 
 
PHYSICS 
 
101. The sound of same pitch and loudness are “distinguished from one another by their 
 (1) Wavelengths (2) Velocity 
 (3) Quality (4) Tones 
 
102. A water pumps lifts water from a level 10 m below the ground. The water is pumped at the 
rate of 30 kg/min with negligible velocity. Calculate the minimum power the pump should 
have to do this work. 
 (1) 49 J/s (2) 490 J/s 
 (3) 500 J/s (4) 48 J/s 
 
103. Six identical resistors connected between points A, B and C as 
shown in diagram. The equivalent resistance would be maximum 
between.  
 (1) A and B  
 (2) B and C 
 (3) A and C  
 (4) Option (1), (2) & (3) are correct.   
 
104. A particle of mass 0.3 kg is subjected to a force F = Kx with K = 15 N/m, what will be its 
acceleration if it is released from a point x = 20 cm. 
 (1) 1 m/s
2
 (2) 10 m/s
2
 
 (3) 100 m/s
2
 (4) 0.1 m/s
2
 
 
105. An object is moving in a straight line. The velocity time graph is 
as shown below. Then  
 (1) In part OA acceleration is increasing.   
 (2) In part AB acceleration is increasing. 
 (3) In part OA acceleration is decreasing.  
 (4) In part AB acceleration is decreasing.  
 
 
106. A force of 100 N acts on a body so that the body acquire a velocity of 10 m/s after some 
time. Now the force of 100 N is replaced by another force F which decelerates the body and 
body come to the rest then. 
 (1) F > 100 N (2) F < 100 N 
 (3) F = 100 N (4) All options are possible 
 
107. 2 points A and B are at electric potentials 10 V and 100 V respectively. A charge q is taken 
from A to B and 18 Joule of work is done. The value of q is 
 (1) 2 Coulomb (2) 0.2 Coulomb 
 (3) 20 Coulomb (4) 0.02 Coulomb 
 
108. Which of the following is NOT correct for magnetic filed lines? 
 (1) The direction of magnetic field lines outside the magnet is from north pole to south pole. 
 (2) The direction of magnetic field lines inside the magnet is from south pole to north pole. 
 (3) The degree of closeness of magnetic field lines tells the relatives strength of magnetic 
field. 
 (4) Magnetic field lines never form closed loop. 
 
  
 
 
109. A car moving along straight line covers 1/5
th
 of total distance with speed v
1
 and remaining 
part of distance with speed v
2
. The average speed of car over entire distance is 
 (1) 
1 2
2 1
5v v
v 4v ?
 (2) 
1 2
1 2
4v v
5v v ?
 (3) 
1 2
2 1
5v v
4v v ?
 (4) 
1 2
1 2
4v v
4v v ?
 
 
110. Light travels through a glass slab of thickness t and having refractive index n. If c is the 
velocity of light in vaccum then the time taken by light to travel this thickness of glass is    
 (1) 
t
nc
 (2) 
nt
c
 (3) 
2
n t
c
 (4) 
2
t
n c
 
 
111. The resistance of rheostat shown in the figure is 0 – 30 ?, 
Neglecting the resistance of ammeter and connecting 
wire the minimum and maximum currents through the 
ammeter will be  
 (1) (0.08 A, 0.33 A) 
 (2) (0.06A, 0.08A) 
 (3) (0.06 A, 0.33 A)  
 (4) (0.33 A, 0.09 A) 
 
 
112. Three particles A, B and C are thrown from top of a building with same speed. A is thrown 
upwards, B is thrown downwards and C is thrown horizontally, they hit the ground with 
speed V
A
, V
B
 and V
C
 respectively then 
 (1) V
A
 = V
B
 = V
C
 (2) V
B
 > V
C
 > V
A
 
 (3) V
A
 = V
B
 > V
C
 (4) V
A
 > V
B
 = V
C
 
 
113. An object of height 2.0 cm is placed on the principal axis of a concave mirror at a distance of 
12 cm from the pole. If the image is inverted, real and 5 cm in height then location of the 
image and focal length of the mirror respectively are 
 (1) (–30 cm, +8.6 cm) (2) (–30 cm, –8.6 cm) 
 (3) (+30 cm, +8.6 cm) (4) (+30 cm, –8.6 cm) 
 
 
 
CHEMISTRY 
114. When lead nitrate is heated a brown gas is evolved, the evolved gas is ________. 
 (1) Dioxygen (2) Nitrogen dioxide 
 (3) Nitrous oxide (4) Dinitrogen 
 
115. When a solution of lead(II) nitrate and potassium iodide are mixed, the yellow ppt is formed, 
the ppt is of________ 
 (1) KNO
3
 (2) KCl 
 (3) PbI
2
 (4) PbI
4
 
 
116. Baking powder is a mixture of __________  
 (1) Sodium hydrogen carbonate and oxalic acid  
 (2) Sodium carbonate and tartaric acid  
 (3) Sodium hydrogen carbonate and tartaric acid 
 (4) Sodium carbonate and oxalic acid. 
 
117. Aqua regia is a mixture of Conc. Hydrochloric acid & Conc. Nitric acid. 
 (1) 3 : 1 (2) 2 : 1 
 (3) 1 : 5 (4) 2 : 3   
 
Page 3


 
  
 
NTSE STAGE – I (DELHI STATE) 
 (2020 – 21)  
 (For Class – X) 
SCHOLASTIC APTITUDE TEST 
 
QUESTION PAPER 
 
PHYSICS 
 
101. The sound of same pitch and loudness are “distinguished from one another by their 
 (1) Wavelengths (2) Velocity 
 (3) Quality (4) Tones 
 
102. A water pumps lifts water from a level 10 m below the ground. The water is pumped at the 
rate of 30 kg/min with negligible velocity. Calculate the minimum power the pump should 
have to do this work. 
 (1) 49 J/s (2) 490 J/s 
 (3) 500 J/s (4) 48 J/s 
 
103. Six identical resistors connected between points A, B and C as 
shown in diagram. The equivalent resistance would be maximum 
between.  
 (1) A and B  
 (2) B and C 
 (3) A and C  
 (4) Option (1), (2) & (3) are correct.   
 
104. A particle of mass 0.3 kg is subjected to a force F = Kx with K = 15 N/m, what will be its 
acceleration if it is released from a point x = 20 cm. 
 (1) 1 m/s
2
 (2) 10 m/s
2
 
 (3) 100 m/s
2
 (4) 0.1 m/s
2
 
 
105. An object is moving in a straight line. The velocity time graph is 
as shown below. Then  
 (1) In part OA acceleration is increasing.   
 (2) In part AB acceleration is increasing. 
 (3) In part OA acceleration is decreasing.  
 (4) In part AB acceleration is decreasing.  
 
 
106. A force of 100 N acts on a body so that the body acquire a velocity of 10 m/s after some 
time. Now the force of 100 N is replaced by another force F which decelerates the body and 
body come to the rest then. 
 (1) F > 100 N (2) F < 100 N 
 (3) F = 100 N (4) All options are possible 
 
107. 2 points A and B are at electric potentials 10 V and 100 V respectively. A charge q is taken 
from A to B and 18 Joule of work is done. The value of q is 
 (1) 2 Coulomb (2) 0.2 Coulomb 
 (3) 20 Coulomb (4) 0.02 Coulomb 
 
108. Which of the following is NOT correct for magnetic filed lines? 
 (1) The direction of magnetic field lines outside the magnet is from north pole to south pole. 
 (2) The direction of magnetic field lines inside the magnet is from south pole to north pole. 
 (3) The degree of closeness of magnetic field lines tells the relatives strength of magnetic 
field. 
 (4) Magnetic field lines never form closed loop. 
 
  
 
 
109. A car moving along straight line covers 1/5
th
 of total distance with speed v
1
 and remaining 
part of distance with speed v
2
. The average speed of car over entire distance is 
 (1) 
1 2
2 1
5v v
v 4v ?
 (2) 
1 2
1 2
4v v
5v v ?
 (3) 
1 2
2 1
5v v
4v v ?
 (4) 
1 2
1 2
4v v
4v v ?
 
 
110. Light travels through a glass slab of thickness t and having refractive index n. If c is the 
velocity of light in vaccum then the time taken by light to travel this thickness of glass is    
 (1) 
t
nc
 (2) 
nt
c
 (3) 
2
n t
c
 (4) 
2
t
n c
 
 
111. The resistance of rheostat shown in the figure is 0 – 30 ?, 
Neglecting the resistance of ammeter and connecting 
wire the minimum and maximum currents through the 
ammeter will be  
 (1) (0.08 A, 0.33 A) 
 (2) (0.06A, 0.08A) 
 (3) (0.06 A, 0.33 A)  
 (4) (0.33 A, 0.09 A) 
 
 
112. Three particles A, B and C are thrown from top of a building with same speed. A is thrown 
upwards, B is thrown downwards and C is thrown horizontally, they hit the ground with 
speed V
A
, V
B
 and V
C
 respectively then 
 (1) V
A
 = V
B
 = V
C
 (2) V
B
 > V
C
 > V
A
 
 (3) V
A
 = V
B
 > V
C
 (4) V
A
 > V
B
 = V
C
 
 
113. An object of height 2.0 cm is placed on the principal axis of a concave mirror at a distance of 
12 cm from the pole. If the image is inverted, real and 5 cm in height then location of the 
image and focal length of the mirror respectively are 
 (1) (–30 cm, +8.6 cm) (2) (–30 cm, –8.6 cm) 
 (3) (+30 cm, +8.6 cm) (4) (+30 cm, –8.6 cm) 
 
 
 
CHEMISTRY 
114. When lead nitrate is heated a brown gas is evolved, the evolved gas is ________. 
 (1) Dioxygen (2) Nitrogen dioxide 
 (3) Nitrous oxide (4) Dinitrogen 
 
115. When a solution of lead(II) nitrate and potassium iodide are mixed, the yellow ppt is formed, 
the ppt is of________ 
 (1) KNO
3
 (2) KCl 
 (3) PbI
2
 (4) PbI
4
 
 
116. Baking powder is a mixture of __________  
 (1) Sodium hydrogen carbonate and oxalic acid  
 (2) Sodium carbonate and tartaric acid  
 (3) Sodium hydrogen carbonate and tartaric acid 
 (4) Sodium carbonate and oxalic acid. 
 
117. Aqua regia is a mixture of Conc. Hydrochloric acid & Conc. Nitric acid. 
 (1) 3 : 1 (2) 2 : 1 
 (3) 1 : 5 (4) 2 : 3   
 
 
  
 
118. 
2 4
Conc.H SO
3 2
443K
CH CH OH Products ?? ??? ? ? 
 The products formed in the above reaction is/are 
 (1) Ethene and H
2
O (2) Ethyne and H
2
O 
 (3) Ethane and H
2
O (4) Methane and H
2
O 
 
119. Denatured alcohol is a mixture of  
 (1) CH
3
OH and HCHO (2) CH
3
OH and CH
3
COOH 
 (3) C
2
H
5
OH and CH
3
OH (4) C
2
H
5
OH and CH
3
COOH 
 
120. For welding a mixture of oxygen and ______ is burnt 
 (1) Benzene (2) Butane 
 (3) Methane (4) Ethyne 
 
121. The following metals are arranged in the increasing order of their metallic character. Choose 
the correct option. 
 (1) Be < Si < K < Al (2) Si < Be < Al < K 
 (3) K < Al < Si < Be (4) Be < Si < Al < K  
 
122. Which one of the following oxide is insoluble in water? 
 (1) Na
2
O (2) CuO 
 (3) K
2
O (4) CaO 
 
123. Which of the following oxide turns red litmus into blue? 
 (1) SO
2
 (2) CO
2
 
 (3) NO
2
 (4) KO
2 
 
124. Which one of the following is not a green house gas? 
 (1) CH
4
 (2) O
3
 
 (3) CO
2
 (4) SO
2
 
 
125. Which of the following element does not show allotropy? 
 (1) Phosphorus (2) Sulphur 
 (3) Oxygen  (4) Aluminium  
 
126. Which one of the following will have the largest  number of atoms? 
 (1) 100 g of He (2) 100 g of Na 
 (3) 100 g of Ii (4) 100 g of Al 
 
 
BIOLOGY 
127. Rearrange the following sentences and choose the correct option. 
 a. Breakdown of H
2
O into Hydrogen and Oxygen and Conversion of light energy into 
chemical energy 
 b. Reduction of carbon dioxide to carbohydrates. 
 c. Absorption of light energy by chlorophyll. 
 (1) a ? b ? c (2) c ? b ? a 
 (3) c ? a ? b (4) a ? c ? b 
 
Page 4


 
  
 
NTSE STAGE – I (DELHI STATE) 
 (2020 – 21)  
 (For Class – X) 
SCHOLASTIC APTITUDE TEST 
 
QUESTION PAPER 
 
PHYSICS 
 
101. The sound of same pitch and loudness are “distinguished from one another by their 
 (1) Wavelengths (2) Velocity 
 (3) Quality (4) Tones 
 
102. A water pumps lifts water from a level 10 m below the ground. The water is pumped at the 
rate of 30 kg/min with negligible velocity. Calculate the minimum power the pump should 
have to do this work. 
 (1) 49 J/s (2) 490 J/s 
 (3) 500 J/s (4) 48 J/s 
 
103. Six identical resistors connected between points A, B and C as 
shown in diagram. The equivalent resistance would be maximum 
between.  
 (1) A and B  
 (2) B and C 
 (3) A and C  
 (4) Option (1), (2) & (3) are correct.   
 
104. A particle of mass 0.3 kg is subjected to a force F = Kx with K = 15 N/m, what will be its 
acceleration if it is released from a point x = 20 cm. 
 (1) 1 m/s
2
 (2) 10 m/s
2
 
 (3) 100 m/s
2
 (4) 0.1 m/s
2
 
 
105. An object is moving in a straight line. The velocity time graph is 
as shown below. Then  
 (1) In part OA acceleration is increasing.   
 (2) In part AB acceleration is increasing. 
 (3) In part OA acceleration is decreasing.  
 (4) In part AB acceleration is decreasing.  
 
 
106. A force of 100 N acts on a body so that the body acquire a velocity of 10 m/s after some 
time. Now the force of 100 N is replaced by another force F which decelerates the body and 
body come to the rest then. 
 (1) F > 100 N (2) F < 100 N 
 (3) F = 100 N (4) All options are possible 
 
107. 2 points A and B are at electric potentials 10 V and 100 V respectively. A charge q is taken 
from A to B and 18 Joule of work is done. The value of q is 
 (1) 2 Coulomb (2) 0.2 Coulomb 
 (3) 20 Coulomb (4) 0.02 Coulomb 
 
108. Which of the following is NOT correct for magnetic filed lines? 
 (1) The direction of magnetic field lines outside the magnet is from north pole to south pole. 
 (2) The direction of magnetic field lines inside the magnet is from south pole to north pole. 
 (3) The degree of closeness of magnetic field lines tells the relatives strength of magnetic 
field. 
 (4) Magnetic field lines never form closed loop. 
 
  
 
 
109. A car moving along straight line covers 1/5
th
 of total distance with speed v
1
 and remaining 
part of distance with speed v
2
. The average speed of car over entire distance is 
 (1) 
1 2
2 1
5v v
v 4v ?
 (2) 
1 2
1 2
4v v
5v v ?
 (3) 
1 2
2 1
5v v
4v v ?
 (4) 
1 2
1 2
4v v
4v v ?
 
 
110. Light travels through a glass slab of thickness t and having refractive index n. If c is the 
velocity of light in vaccum then the time taken by light to travel this thickness of glass is    
 (1) 
t
nc
 (2) 
nt
c
 (3) 
2
n t
c
 (4) 
2
t
n c
 
 
111. The resistance of rheostat shown in the figure is 0 – 30 ?, 
Neglecting the resistance of ammeter and connecting 
wire the minimum and maximum currents through the 
ammeter will be  
 (1) (0.08 A, 0.33 A) 
 (2) (0.06A, 0.08A) 
 (3) (0.06 A, 0.33 A)  
 (4) (0.33 A, 0.09 A) 
 
 
112. Three particles A, B and C are thrown from top of a building with same speed. A is thrown 
upwards, B is thrown downwards and C is thrown horizontally, they hit the ground with 
speed V
A
, V
B
 and V
C
 respectively then 
 (1) V
A
 = V
B
 = V
C
 (2) V
B
 > V
C
 > V
A
 
 (3) V
A
 = V
B
 > V
C
 (4) V
A
 > V
B
 = V
C
 
 
113. An object of height 2.0 cm is placed on the principal axis of a concave mirror at a distance of 
12 cm from the pole. If the image is inverted, real and 5 cm in height then location of the 
image and focal length of the mirror respectively are 
 (1) (–30 cm, +8.6 cm) (2) (–30 cm, –8.6 cm) 
 (3) (+30 cm, +8.6 cm) (4) (+30 cm, –8.6 cm) 
 
 
 
CHEMISTRY 
114. When lead nitrate is heated a brown gas is evolved, the evolved gas is ________. 
 (1) Dioxygen (2) Nitrogen dioxide 
 (3) Nitrous oxide (4) Dinitrogen 
 
115. When a solution of lead(II) nitrate and potassium iodide are mixed, the yellow ppt is formed, 
the ppt is of________ 
 (1) KNO
3
 (2) KCl 
 (3) PbI
2
 (4) PbI
4
 
 
116. Baking powder is a mixture of __________  
 (1) Sodium hydrogen carbonate and oxalic acid  
 (2) Sodium carbonate and tartaric acid  
 (3) Sodium hydrogen carbonate and tartaric acid 
 (4) Sodium carbonate and oxalic acid. 
 
117. Aqua regia is a mixture of Conc. Hydrochloric acid & Conc. Nitric acid. 
 (1) 3 : 1 (2) 2 : 1 
 (3) 1 : 5 (4) 2 : 3   
 
 
  
 
118. 
2 4
Conc.H SO
3 2
443K
CH CH OH Products ?? ??? ? ? 
 The products formed in the above reaction is/are 
 (1) Ethene and H
2
O (2) Ethyne and H
2
O 
 (3) Ethane and H
2
O (4) Methane and H
2
O 
 
119. Denatured alcohol is a mixture of  
 (1) CH
3
OH and HCHO (2) CH
3
OH and CH
3
COOH 
 (3) C
2
H
5
OH and CH
3
OH (4) C
2
H
5
OH and CH
3
COOH 
 
120. For welding a mixture of oxygen and ______ is burnt 
 (1) Benzene (2) Butane 
 (3) Methane (4) Ethyne 
 
121. The following metals are arranged in the increasing order of their metallic character. Choose 
the correct option. 
 (1) Be < Si < K < Al (2) Si < Be < Al < K 
 (3) K < Al < Si < Be (4) Be < Si < Al < K  
 
122. Which one of the following oxide is insoluble in water? 
 (1) Na
2
O (2) CuO 
 (3) K
2
O (4) CaO 
 
123. Which of the following oxide turns red litmus into blue? 
 (1) SO
2
 (2) CO
2
 
 (3) NO
2
 (4) KO
2 
 
124. Which one of the following is not a green house gas? 
 (1) CH
4
 (2) O
3
 
 (3) CO
2
 (4) SO
2
 
 
125. Which of the following element does not show allotropy? 
 (1) Phosphorus (2) Sulphur 
 (3) Oxygen  (4) Aluminium  
 
126. Which one of the following will have the largest  number of atoms? 
 (1) 100 g of He (2) 100 g of Na 
 (3) 100 g of Ii (4) 100 g of Al 
 
 
BIOLOGY 
127. Rearrange the following sentences and choose the correct option. 
 a. Breakdown of H
2
O into Hydrogen and Oxygen and Conversion of light energy into 
chemical energy 
 b. Reduction of carbon dioxide to carbohydrates. 
 c. Absorption of light energy by chlorophyll. 
 (1) a ? b ? c (2) c ? b ? a 
 (3) c ? a ? b (4) a ? c ? b 
 
 
  
 
128. Deepak is trying to study flow of energy in an area and he made the following diagram for 
the same. How will you interpret his observations? 
 
 (1) His observations and number of trophic levels are wrong. 
 (2) His observations are correct but the number of trophic levels can be more. 
 (3) His observations are wrong but number of trophic levels are correct. 
 (4) His observations as well as number of trophic levels are correct. 
 
129. UV rays cause cancer but in stratosphere the same UV rays are helping us, how? 
 (1) They divert harmful UV rays back to sun 
 (2) They convert oxygen in stratosphere into ozone. 
 (3) UV rays are not present in stratosphere. 
 (4) UV rays reach the earth surface then bounce back carrying ozone to stratosphere. 
 
130. Match the following. 
Column-I  Column-II 
(i) Regeneration (a) Shoot 
(ii) Rhizophus (b) Pollen grain 
(iii) Plumule (c) Vegetative Propagation 
(iv) Rose (d) Planaria 
(v) Stigma (e) Spores 
   
 (1) i ? a;   ii ? e;   iii ? d;  iv ? b v ? c 
 (2) i ? b;   ii ? d;   iii ? a; iv ? c  v ? e 
 (3)  i ? b;    ii ? a;  iii ? d;  iv ? c v ? e 
 (4) i ? d;    ii ? e; iii ? a;  iv ? c v ? b 
 
131. The opening and closing of the stomata depends upon:- 
 (1) Oxygen (2) Temperature 
 (3) Carbon dioxide (4) Water in guard cells 
 
132. Sonu performed an experiment to study dihybrid cross for round/wrinkled and yellow/green 
coloured seeds. He obtained 2432 seeds in total. What will be the number of seeds which 
are round and yellow? 
 (1) 1367 (2) 1356 
 (3) 1368 (4) 1438 
 
133. The stakeholders of various forest products are: 
 (i)  People living near forests (ii)  Government only 
 (iii)  Nature lovers (iv) Wild life 
 
 (1) All options are correct (2) Only (i), (ii) and (iii) is correct 
 (3) Only (ii) is incorrect (4) None of the option is correct. 
 
Page 5


 
  
 
NTSE STAGE – I (DELHI STATE) 
 (2020 – 21)  
 (For Class – X) 
SCHOLASTIC APTITUDE TEST 
 
QUESTION PAPER 
 
PHYSICS 
 
101. The sound of same pitch and loudness are “distinguished from one another by their 
 (1) Wavelengths (2) Velocity 
 (3) Quality (4) Tones 
 
102. A water pumps lifts water from a level 10 m below the ground. The water is pumped at the 
rate of 30 kg/min with negligible velocity. Calculate the minimum power the pump should 
have to do this work. 
 (1) 49 J/s (2) 490 J/s 
 (3) 500 J/s (4) 48 J/s 
 
103. Six identical resistors connected between points A, B and C as 
shown in diagram. The equivalent resistance would be maximum 
between.  
 (1) A and B  
 (2) B and C 
 (3) A and C  
 (4) Option (1), (2) & (3) are correct.   
 
104. A particle of mass 0.3 kg is subjected to a force F = Kx with K = 15 N/m, what will be its 
acceleration if it is released from a point x = 20 cm. 
 (1) 1 m/s
2
 (2) 10 m/s
2
 
 (3) 100 m/s
2
 (4) 0.1 m/s
2
 
 
105. An object is moving in a straight line. The velocity time graph is 
as shown below. Then  
 (1) In part OA acceleration is increasing.   
 (2) In part AB acceleration is increasing. 
 (3) In part OA acceleration is decreasing.  
 (4) In part AB acceleration is decreasing.  
 
 
106. A force of 100 N acts on a body so that the body acquire a velocity of 10 m/s after some 
time. Now the force of 100 N is replaced by another force F which decelerates the body and 
body come to the rest then. 
 (1) F > 100 N (2) F < 100 N 
 (3) F = 100 N (4) All options are possible 
 
107. 2 points A and B are at electric potentials 10 V and 100 V respectively. A charge q is taken 
from A to B and 18 Joule of work is done. The value of q is 
 (1) 2 Coulomb (2) 0.2 Coulomb 
 (3) 20 Coulomb (4) 0.02 Coulomb 
 
108. Which of the following is NOT correct for magnetic filed lines? 
 (1) The direction of magnetic field lines outside the magnet is from north pole to south pole. 
 (2) The direction of magnetic field lines inside the magnet is from south pole to north pole. 
 (3) The degree of closeness of magnetic field lines tells the relatives strength of magnetic 
field. 
 (4) Magnetic field lines never form closed loop. 
 
  
 
 
109. A car moving along straight line covers 1/5
th
 of total distance with speed v
1
 and remaining 
part of distance with speed v
2
. The average speed of car over entire distance is 
 (1) 
1 2
2 1
5v v
v 4v ?
 (2) 
1 2
1 2
4v v
5v v ?
 (3) 
1 2
2 1
5v v
4v v ?
 (4) 
1 2
1 2
4v v
4v v ?
 
 
110. Light travels through a glass slab of thickness t and having refractive index n. If c is the 
velocity of light in vaccum then the time taken by light to travel this thickness of glass is    
 (1) 
t
nc
 (2) 
nt
c
 (3) 
2
n t
c
 (4) 
2
t
n c
 
 
111. The resistance of rheostat shown in the figure is 0 – 30 ?, 
Neglecting the resistance of ammeter and connecting 
wire the minimum and maximum currents through the 
ammeter will be  
 (1) (0.08 A, 0.33 A) 
 (2) (0.06A, 0.08A) 
 (3) (0.06 A, 0.33 A)  
 (4) (0.33 A, 0.09 A) 
 
 
112. Three particles A, B and C are thrown from top of a building with same speed. A is thrown 
upwards, B is thrown downwards and C is thrown horizontally, they hit the ground with 
speed V
A
, V
B
 and V
C
 respectively then 
 (1) V
A
 = V
B
 = V
C
 (2) V
B
 > V
C
 > V
A
 
 (3) V
A
 = V
B
 > V
C
 (4) V
A
 > V
B
 = V
C
 
 
113. An object of height 2.0 cm is placed on the principal axis of a concave mirror at a distance of 
12 cm from the pole. If the image is inverted, real and 5 cm in height then location of the 
image and focal length of the mirror respectively are 
 (1) (–30 cm, +8.6 cm) (2) (–30 cm, –8.6 cm) 
 (3) (+30 cm, +8.6 cm) (4) (+30 cm, –8.6 cm) 
 
 
 
CHEMISTRY 
114. When lead nitrate is heated a brown gas is evolved, the evolved gas is ________. 
 (1) Dioxygen (2) Nitrogen dioxide 
 (3) Nitrous oxide (4) Dinitrogen 
 
115. When a solution of lead(II) nitrate and potassium iodide are mixed, the yellow ppt is formed, 
the ppt is of________ 
 (1) KNO
3
 (2) KCl 
 (3) PbI
2
 (4) PbI
4
 
 
116. Baking powder is a mixture of __________  
 (1) Sodium hydrogen carbonate and oxalic acid  
 (2) Sodium carbonate and tartaric acid  
 (3) Sodium hydrogen carbonate and tartaric acid 
 (4) Sodium carbonate and oxalic acid. 
 
117. Aqua regia is a mixture of Conc. Hydrochloric acid & Conc. Nitric acid. 
 (1) 3 : 1 (2) 2 : 1 
 (3) 1 : 5 (4) 2 : 3   
 
 
  
 
118. 
2 4
Conc.H SO
3 2
443K
CH CH OH Products ?? ??? ? ? 
 The products formed in the above reaction is/are 
 (1) Ethene and H
2
O (2) Ethyne and H
2
O 
 (3) Ethane and H
2
O (4) Methane and H
2
O 
 
119. Denatured alcohol is a mixture of  
 (1) CH
3
OH and HCHO (2) CH
3
OH and CH
3
COOH 
 (3) C
2
H
5
OH and CH
3
OH (4) C
2
H
5
OH and CH
3
COOH 
 
120. For welding a mixture of oxygen and ______ is burnt 
 (1) Benzene (2) Butane 
 (3) Methane (4) Ethyne 
 
121. The following metals are arranged in the increasing order of their metallic character. Choose 
the correct option. 
 (1) Be < Si < K < Al (2) Si < Be < Al < K 
 (3) K < Al < Si < Be (4) Be < Si < Al < K  
 
122. Which one of the following oxide is insoluble in water? 
 (1) Na
2
O (2) CuO 
 (3) K
2
O (4) CaO 
 
123. Which of the following oxide turns red litmus into blue? 
 (1) SO
2
 (2) CO
2
 
 (3) NO
2
 (4) KO
2 
 
124. Which one of the following is not a green house gas? 
 (1) CH
4
 (2) O
3
 
 (3) CO
2
 (4) SO
2
 
 
125. Which of the following element does not show allotropy? 
 (1) Phosphorus (2) Sulphur 
 (3) Oxygen  (4) Aluminium  
 
126. Which one of the following will have the largest  number of atoms? 
 (1) 100 g of He (2) 100 g of Na 
 (3) 100 g of Ii (4) 100 g of Al 
 
 
BIOLOGY 
127. Rearrange the following sentences and choose the correct option. 
 a. Breakdown of H
2
O into Hydrogen and Oxygen and Conversion of light energy into 
chemical energy 
 b. Reduction of carbon dioxide to carbohydrates. 
 c. Absorption of light energy by chlorophyll. 
 (1) a ? b ? c (2) c ? b ? a 
 (3) c ? a ? b (4) a ? c ? b 
 
 
  
 
128. Deepak is trying to study flow of energy in an area and he made the following diagram for 
the same. How will you interpret his observations? 
 
 (1) His observations and number of trophic levels are wrong. 
 (2) His observations are correct but the number of trophic levels can be more. 
 (3) His observations are wrong but number of trophic levels are correct. 
 (4) His observations as well as number of trophic levels are correct. 
 
129. UV rays cause cancer but in stratosphere the same UV rays are helping us, how? 
 (1) They divert harmful UV rays back to sun 
 (2) They convert oxygen in stratosphere into ozone. 
 (3) UV rays are not present in stratosphere. 
 (4) UV rays reach the earth surface then bounce back carrying ozone to stratosphere. 
 
130. Match the following. 
Column-I  Column-II 
(i) Regeneration (a) Shoot 
(ii) Rhizophus (b) Pollen grain 
(iii) Plumule (c) Vegetative Propagation 
(iv) Rose (d) Planaria 
(v) Stigma (e) Spores 
   
 (1) i ? a;   ii ? e;   iii ? d;  iv ? b v ? c 
 (2) i ? b;   ii ? d;   iii ? a; iv ? c  v ? e 
 (3)  i ? b;    ii ? a;  iii ? d;  iv ? c v ? e 
 (4) i ? d;    ii ? e; iii ? a;  iv ? c v ? b 
 
131. The opening and closing of the stomata depends upon:- 
 (1) Oxygen (2) Temperature 
 (3) Carbon dioxide (4) Water in guard cells 
 
132. Sonu performed an experiment to study dihybrid cross for round/wrinkled and yellow/green 
coloured seeds. He obtained 2432 seeds in total. What will be the number of seeds which 
are round and yellow? 
 (1) 1367 (2) 1356 
 (3) 1368 (4) 1438 
 
133. The stakeholders of various forest products are: 
 (i)  People living near forests (ii)  Government only 
 (iii)  Nature lovers (iv) Wild life 
 
 (1) All options are correct (2) Only (i), (ii) and (iii) is correct 
 (3) Only (ii) is incorrect (4) None of the option is correct. 
 
 
  
 
 
134. Choose the correct sequence: 
 (1) Pulmonary vein  ? Pulmonary artery  ? Left auricle  ? Right ventricle 
 (2) Pulmonary artery  ? Right auricle  ? Left ventricle  ? Pulmonary vein 
 (3) Right auricle  ? Pulmonary artery  ? Pulmonary vein  ? Left ventricle 
 (4) Left ventricle  ? Pulmonary vein  ? Pulmonary artery ? Right auricle 
 
 
135. Assertion (A):  No carbon dioxide is released during the day in plants. 
 Reason (R):  Only photosynthesis occurs during the day. 
 
 (1) ‘A’ is true and ‘R’ is false 
 (2) ‘A’ is false and ‘R’ is true 
 (3) Both ‘A’ and ‘R’ are false 
 (4) Both ‘A’ and ‘R’ are true but ‘R’ does not explain ‘A’ 
 
136. Choose the non-biodegradable substance from the following: 
 i. Carrot ii. Glass bottle 
 iii. Perfume spray bottle iv. Rice bran 
 v. Papaya vi. Thermocol 
 vii. Wooden stick viii. Ball pen refill 
 
 (1) (ii), (iii), (vii), (viii) (2) (ii), (iii), (vi), (viii) 
 (3) (iii), (i), (v), (vii) (4) (viii), (v), (i), (iii) 
 
137. Match the column I and column II and select correct option. 
Column-I  Column-II 
(A) Ribosome 1. ATP formation 
(B) Mitochondria 2. Photosynthesis 
(C) Centriole 3. Protein synthesis 
(D) Chloroplast 4. Cell division 
 
 (1) A ? 1;  B ? 2;  C ? 4;  D ? 2  
 (2) A ? 3;   B ? 1;  C ? 4; D ? 2   
 (3)  A ? 4;    B ? 3;  C ? 2;  D ? 1  
 (4) A ? 2;    B ? 1; C ? 3;  D ? 4  
 
 
138. Which of the following is a barrier method of contraception? 
 (1) Diaphragm (2) Contraceptive pills 
 (3) Tubectomy (4) All of the above 
 
139. Sperms are produced in the:- 
 (1) Seminiferous tubules (2) Interstitial cell 
 (3) Vas deferens (4) Prostate gland 
 
140. Blood pressure is measured by an instrument called:- 
 (1) Barometer (2) Sphygmomanometer 
 (3) Photometer (4) Manometer