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 Page 1


 
 
 
 
 
 
 
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National Talent Search State Level Examination – 2018 
Answer Key & Solutions 
PART – I GENERAL MENTAL ABILITY TEST 
1. 3  2. 1  3. 4  4. 3  5. 4 
6. 3  7. 2  8. 1  9. 3  10. 4 
11. 2  12. 1  13. 2  14. 4  15. 3 
16. 1  17. 2  18. 4  19. 3  20. 1 
21. 2  22. 4  23. 3  24. 2  25. 1 
26. *  27. 3  28. 1  29. 2  30. 3 
31. 4  32. 1  33. 2  34. 3  35. 2 
36. 1  37. 3  38. 4  39. 2  40. 1 
41. 1  42. 4  43. 2  44. 3  45. 2 
46. 3  47. 4  48. 4  49. 3  50. 2 
PART – II LANGUAGE COMPREHENSIVE TEST 
51. 4  52. 1  53. 1  54. 2  55. 4 
56. 2  57. 2  58. 3  59. 3  60. 1 
61. 2  62. 4  63. 3  64. 1  65. 4 
66. 3  67. 1  68. 1  69. 4  70. 2 
71. 2  72. 2  73. 2  74. 4  75. 1 
76. 2  77. 2  78. 1  79. 1  80. 4 
81. 3  82. 4  83. 3  84. 4  85. 2 
86. 2  87. 2  88. 3  89. 4  90. 3 
91. 4  92. 1  93. 4  94. 1  95. 4 
96. 1  97. 3  98. 4  99. 4  100. 4 
PART – III SCHOLASTIC APTITUDE TEST 
PHYSICS  
101. 3  102. 3  103. 4  104. 4  105. 3 
106. 2  107. 2  108. 1  109. 1  110. 1 
111. 1  112. 3  113. 3 
CHEMISTRY  
114. 3  115. 1  116. 2  117. 3  118. 1 
119. 1  120. 2  121. 1  122. 3  123. 4 
124. 3  125. 4  126. 4  127. 2 
BIOLOGY 
128. 4  129. 1  130. 2  131. 1  132. 2 
133. 3  134. 4  135. 1  136. 4  137. 2 
138. 3  139. 1  140. 4 
SOCIAL SCIENCE 
141. 2  142. 2  143. 2  144. 3  145. 1 
146. 1  147. 4  148. 3  149. 3  150. 1 
151. 1  152. 2  153. 1  154. 4  155. 3 
156. 2  157. 3  158. 2  159. 3  160. 4 
161. 1  162. 1  163. 2  164. 2  165. 3 
166. 4  167. 4  168. 2  169. 1  170. 3 
171. 4  172. 3  173. 2  174. 1  175. 3 
176. 2  177. 2  178. 3  179. 2  180. 3 
MATHEMATICS 
181. 4  182. 1  183. 3  184. 1  185. 2 
186. 2  187. 3  188. 2  189. 4  190. 3 
191. 3  192. 1  193. 2  194. 1  195. 1 
196. 3  197. 3  198. 3  199. 1  200. 2 
Page 2


 
 
 
 
 
 
 
F     
F     
    
National Talent Search State Level Examination – 2018 
Answer Key & Solutions 
PART – I GENERAL MENTAL ABILITY TEST 
1. 3  2. 1  3. 4  4. 3  5. 4 
6. 3  7. 2  8. 1  9. 3  10. 4 
11. 2  12. 1  13. 2  14. 4  15. 3 
16. 1  17. 2  18. 4  19. 3  20. 1 
21. 2  22. 4  23. 3  24. 2  25. 1 
26. *  27. 3  28. 1  29. 2  30. 3 
31. 4  32. 1  33. 2  34. 3  35. 2 
36. 1  37. 3  38. 4  39. 2  40. 1 
41. 1  42. 4  43. 2  44. 3  45. 2 
46. 3  47. 4  48. 4  49. 3  50. 2 
PART – II LANGUAGE COMPREHENSIVE TEST 
51. 4  52. 1  53. 1  54. 2  55. 4 
56. 2  57. 2  58. 3  59. 3  60. 1 
61. 2  62. 4  63. 3  64. 1  65. 4 
66. 3  67. 1  68. 1  69. 4  70. 2 
71. 2  72. 2  73. 2  74. 4  75. 1 
76. 2  77. 2  78. 1  79. 1  80. 4 
81. 3  82. 4  83. 3  84. 4  85. 2 
86. 2  87. 2  88. 3  89. 4  90. 3 
91. 4  92. 1  93. 4  94. 1  95. 4 
96. 1  97. 3  98. 4  99. 4  100. 4 
PART – III SCHOLASTIC APTITUDE TEST 
PHYSICS  
101. 3  102. 3  103. 4  104. 4  105. 3 
106. 2  107. 2  108. 1  109. 1  110. 1 
111. 1  112. 3  113. 3 
CHEMISTRY  
114. 3  115. 1  116. 2  117. 3  118. 1 
119. 1  120. 2  121. 1  122. 3  123. 4 
124. 3  125. 4  126. 4  127. 2 
BIOLOGY 
128. 4  129. 1  130. 2  131. 1  132. 2 
133. 3  134. 4  135. 1  136. 4  137. 2 
138. 3  139. 1  140. 4 
SOCIAL SCIENCE 
141. 2  142. 2  143. 2  144. 3  145. 1 
146. 1  147. 4  148. 3  149. 3  150. 1 
151. 1  152. 2  153. 1  154. 4  155. 3 
156. 2  157. 3  158. 2  159. 3  160. 4 
161. 1  162. 1  163. 2  164. 2  165. 3 
166. 4  167. 4  168. 2  169. 1  170. 3 
171. 4  172. 3  173. 2  174. 1  175. 3 
176. 2  177. 2  178. 3  179. 2  180. 3 
MATHEMATICS 
181. 4  182. 1  183. 3  184. 1  185. 2 
186. 2  187. 3  188. 2  189. 4  190. 3 
191. 3  192. 1  193. 2  194. 1  195. 1 
196. 3  197. 3  198. 3  199. 1  200. 2 
 
 
 
 
 
 
 
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SOLUTION 
PART – I GENERAL MENTAL ABILITY TEST 
4. 3 
perfect square       
10. 4 
(6
4
 – 6) 
13. 2 
difference       
14. 4 
differences (3, 0, 6, 1, 9, 2, 12, 3) 
16. 1 
n
3
 + 1       
19. 3 
FERK 
20. 1 
WVKX       
34. 3 
7 × 4 – 9      
35. 2 
(4 ? 8) × 6 
36. 1 
3 × 5 + 4      
37. 3 
3 + 6 + 4 = 13 = 1 + 4 
38. 4 
add ? 3       
41. 1 
V > S > T > R U 
 
PART – III SCHOLASTIC APTITUDE TEST 
PHYSICS  
101. 3 
 Resistance is obstruction to the flow of electric current. 
 
102. 3 
 Radiation  
Conduction and  convention needs medium to travel, while radiation does not need medium to 
travel.  
 
103. 4 
 1000 cubic centimeter 
 
? ?
33
3
3 3 6 3
33
1 litre = 10 m
1 meter = 100 cm
1 litre = 10 100 cm 10 10 cm
1 litre = 10 cm
?
??
? ? ?
 
104. Irregular & non – periodic vibration  
Music is produced by regular and periodic vibrations 
 Noise is produced by irregular & non – periodic vibrations.  
Page 3


 
 
 
 
 
 
 
F     
F     
    
National Talent Search State Level Examination – 2018 
Answer Key & Solutions 
PART – I GENERAL MENTAL ABILITY TEST 
1. 3  2. 1  3. 4  4. 3  5. 4 
6. 3  7. 2  8. 1  9. 3  10. 4 
11. 2  12. 1  13. 2  14. 4  15. 3 
16. 1  17. 2  18. 4  19. 3  20. 1 
21. 2  22. 4  23. 3  24. 2  25. 1 
26. *  27. 3  28. 1  29. 2  30. 3 
31. 4  32. 1  33. 2  34. 3  35. 2 
36. 1  37. 3  38. 4  39. 2  40. 1 
41. 1  42. 4  43. 2  44. 3  45. 2 
46. 3  47. 4  48. 4  49. 3  50. 2 
PART – II LANGUAGE COMPREHENSIVE TEST 
51. 4  52. 1  53. 1  54. 2  55. 4 
56. 2  57. 2  58. 3  59. 3  60. 1 
61. 2  62. 4  63. 3  64. 1  65. 4 
66. 3  67. 1  68. 1  69. 4  70. 2 
71. 2  72. 2  73. 2  74. 4  75. 1 
76. 2  77. 2  78. 1  79. 1  80. 4 
81. 3  82. 4  83. 3  84. 4  85. 2 
86. 2  87. 2  88. 3  89. 4  90. 3 
91. 4  92. 1  93. 4  94. 1  95. 4 
96. 1  97. 3  98. 4  99. 4  100. 4 
PART – III SCHOLASTIC APTITUDE TEST 
PHYSICS  
101. 3  102. 3  103. 4  104. 4  105. 3 
106. 2  107. 2  108. 1  109. 1  110. 1 
111. 1  112. 3  113. 3 
CHEMISTRY  
114. 3  115. 1  116. 2  117. 3  118. 1 
119. 1  120. 2  121. 1  122. 3  123. 4 
124. 3  125. 4  126. 4  127. 2 
BIOLOGY 
128. 4  129. 1  130. 2  131. 1  132. 2 
133. 3  134. 4  135. 1  136. 4  137. 2 
138. 3  139. 1  140. 4 
SOCIAL SCIENCE 
141. 2  142. 2  143. 2  144. 3  145. 1 
146. 1  147. 4  148. 3  149. 3  150. 1 
151. 1  152. 2  153. 1  154. 4  155. 3 
156. 2  157. 3  158. 2  159. 3  160. 4 
161. 1  162. 1  163. 2  164. 2  165. 3 
166. 4  167. 4  168. 2  169. 1  170. 3 
171. 4  172. 3  173. 2  174. 1  175. 3 
176. 2  177. 2  178. 3  179. 2  180. 3 
MATHEMATICS 
181. 4  182. 1  183. 3  184. 1  185. 2 
186. 2  187. 3  188. 2  189. 4  190. 3 
191. 3  192. 1  193. 2  194. 1  195. 1 
196. 3  197. 3  198. 3  199. 1  200. 2 
 
 
 
 
 
 
 
F     
F     
    
SOLUTION 
PART – I GENERAL MENTAL ABILITY TEST 
4. 3 
perfect square       
10. 4 
(6
4
 – 6) 
13. 2 
difference       
14. 4 
differences (3, 0, 6, 1, 9, 2, 12, 3) 
16. 1 
n
3
 + 1       
19. 3 
FERK 
20. 1 
WVKX       
34. 3 
7 × 4 – 9      
35. 2 
(4 ? 8) × 6 
36. 1 
3 × 5 + 4      
37. 3 
3 + 6 + 4 = 13 = 1 + 4 
38. 4 
add ? 3       
41. 1 
V > S > T > R U 
 
PART – III SCHOLASTIC APTITUDE TEST 
PHYSICS  
101. 3 
 Resistance is obstruction to the flow of electric current. 
 
102. 3 
 Radiation  
Conduction and  convention needs medium to travel, while radiation does not need medium to 
travel.  
 
103. 4 
 1000 cubic centimeter 
 
? ?
33
3
3 3 6 3
33
1 litre = 10 m
1 meter = 100 cm
1 litre = 10 100 cm 10 10 cm
1 litre = 10 cm
?
??
? ? ?
 
104. Irregular & non – periodic vibration  
Music is produced by regular and periodic vibrations 
 Noise is produced by irregular & non – periodic vibrations.  
 
 
 
 
 
 
 
F     
F     
    
 
105. 3 
  
 
 
 
 
Ray which passes through optical centre remains undeviated.   
 
106. 2 
 
? ?
? ?
5
C F 32
9
C F 32
100 180
9
C F 32
5
5
C F 32
9
??
?
?
? ? ?
? ? ?
 
 
107. 2 
Due to refraction when a light ray passes from dense medium is rarer medium it bends away 
from normal. 
 
108. 1 
4 Meter. Image formed by the plane mirror is at equal distance as that of the object from plane 
mirror. 
 
109. 1 
According to the law of floation weight of a floating body is equal to the weight of displaced 
liquid.  
?Ans (1) wt. of displaced liquid. 
 
110. 1 
 ? ?
12
Req R R
22
4 
??
? ? ?
??
 
 
? ?
12
1 1 1
Req R R
1 1 2
1
2 2 2
1 4 ,1 
??
? ? ? ?
??
 
 
111. 1 
Second’s needle of clock completer one revolution in one minute. Therefore its time period 
will be 1 minute. 
 
112. 3 
When an object is placed between two plane mirror infinite number of images will be formed. 
 
o 
Page 4


 
 
 
 
 
 
 
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F     
    
National Talent Search State Level Examination – 2018 
Answer Key & Solutions 
PART – I GENERAL MENTAL ABILITY TEST 
1. 3  2. 1  3. 4  4. 3  5. 4 
6. 3  7. 2  8. 1  9. 3  10. 4 
11. 2  12. 1  13. 2  14. 4  15. 3 
16. 1  17. 2  18. 4  19. 3  20. 1 
21. 2  22. 4  23. 3  24. 2  25. 1 
26. *  27. 3  28. 1  29. 2  30. 3 
31. 4  32. 1  33. 2  34. 3  35. 2 
36. 1  37. 3  38. 4  39. 2  40. 1 
41. 1  42. 4  43. 2  44. 3  45. 2 
46. 3  47. 4  48. 4  49. 3  50. 2 
PART – II LANGUAGE COMPREHENSIVE TEST 
51. 4  52. 1  53. 1  54. 2  55. 4 
56. 2  57. 2  58. 3  59. 3  60. 1 
61. 2  62. 4  63. 3  64. 1  65. 4 
66. 3  67. 1  68. 1  69. 4  70. 2 
71. 2  72. 2  73. 2  74. 4  75. 1 
76. 2  77. 2  78. 1  79. 1  80. 4 
81. 3  82. 4  83. 3  84. 4  85. 2 
86. 2  87. 2  88. 3  89. 4  90. 3 
91. 4  92. 1  93. 4  94. 1  95. 4 
96. 1  97. 3  98. 4  99. 4  100. 4 
PART – III SCHOLASTIC APTITUDE TEST 
PHYSICS  
101. 3  102. 3  103. 4  104. 4  105. 3 
106. 2  107. 2  108. 1  109. 1  110. 1 
111. 1  112. 3  113. 3 
CHEMISTRY  
114. 3  115. 1  116. 2  117. 3  118. 1 
119. 1  120. 2  121. 1  122. 3  123. 4 
124. 3  125. 4  126. 4  127. 2 
BIOLOGY 
128. 4  129. 1  130. 2  131. 1  132. 2 
133. 3  134. 4  135. 1  136. 4  137. 2 
138. 3  139. 1  140. 4 
SOCIAL SCIENCE 
141. 2  142. 2  143. 2  144. 3  145. 1 
146. 1  147. 4  148. 3  149. 3  150. 1 
151. 1  152. 2  153. 1  154. 4  155. 3 
156. 2  157. 3  158. 2  159. 3  160. 4 
161. 1  162. 1  163. 2  164. 2  165. 3 
166. 4  167. 4  168. 2  169. 1  170. 3 
171. 4  172. 3  173. 2  174. 1  175. 3 
176. 2  177. 2  178. 3  179. 2  180. 3 
MATHEMATICS 
181. 4  182. 1  183. 3  184. 1  185. 2 
186. 2  187. 3  188. 2  189. 4  190. 3 
191. 3  192. 1  193. 2  194. 1  195. 1 
196. 3  197. 3  198. 3  199. 1  200. 2 
 
 
 
 
 
 
 
F     
F     
    
SOLUTION 
PART – I GENERAL MENTAL ABILITY TEST 
4. 3 
perfect square       
10. 4 
(6
4
 – 6) 
13. 2 
difference       
14. 4 
differences (3, 0, 6, 1, 9, 2, 12, 3) 
16. 1 
n
3
 + 1       
19. 3 
FERK 
20. 1 
WVKX       
34. 3 
7 × 4 – 9      
35. 2 
(4 ? 8) × 6 
36. 1 
3 × 5 + 4      
37. 3 
3 + 6 + 4 = 13 = 1 + 4 
38. 4 
add ? 3       
41. 1 
V > S > T > R U 
 
PART – III SCHOLASTIC APTITUDE TEST 
PHYSICS  
101. 3 
 Resistance is obstruction to the flow of electric current. 
 
102. 3 
 Radiation  
Conduction and  convention needs medium to travel, while radiation does not need medium to 
travel.  
 
103. 4 
 1000 cubic centimeter 
 
? ?
33
3
3 3 6 3
33
1 litre = 10 m
1 meter = 100 cm
1 litre = 10 100 cm 10 10 cm
1 litre = 10 cm
?
??
? ? ?
 
104. Irregular & non – periodic vibration  
Music is produced by regular and periodic vibrations 
 Noise is produced by irregular & non – periodic vibrations.  
 
 
 
 
 
 
 
F     
F     
    
 
105. 3 
  
 
 
 
 
Ray which passes through optical centre remains undeviated.   
 
106. 2 
 
? ?
? ?
5
C F 32
9
C F 32
100 180
9
C F 32
5
5
C F 32
9
??
?
?
? ? ?
? ? ?
 
 
107. 2 
Due to refraction when a light ray passes from dense medium is rarer medium it bends away 
from normal. 
 
108. 1 
4 Meter. Image formed by the plane mirror is at equal distance as that of the object from plane 
mirror. 
 
109. 1 
According to the law of floation weight of a floating body is equal to the weight of displaced 
liquid.  
?Ans (1) wt. of displaced liquid. 
 
110. 1 
 ? ?
12
Req R R
22
4 
??
? ? ?
??
 
 
? ?
12
1 1 1
Req R R
1 1 2
1
2 2 2
1 4 ,1 
??
? ? ? ?
??
 
 
111. 1 
Second’s needle of clock completer one revolution in one minute. Therefore its time period 
will be 1 minute. 
 
112. 3 
When an object is placed between two plane mirror infinite number of images will be formed. 
 
o 
 
 
 
 
 
 
 
F     
F     
    
113. In long lightens images is formed behind Retina. 
 
CHEMISTRY  
114. 3 
Ethylene double Bond 
115. 1 
All non-metal oxide on reacting with water gives Acidic solution  
116. 2 
Stainless steel contains Iron, Chromium, Carbon 
117. 3 
Anthracite has maximum percentage of carbon  
118. 1 
Factual  
119. 1 
22
Zn 2HCl ZnCl H ? ? ? ? 
120. 2 
Bromine liquid at room temperature  
121. 1 
Na reacts with cold water to give H2 gas  
122. 3 
Factual  
123. 4 
Flint glass (Factual) 
124. 3 
Controlled nuclear fission required in nuclear reactor. 
125. 4 
Factual  
126. 4 
2 2 2 2 2
CaC H O C H Ca(OH) ? ? ? 
127. 2 
Fog ? liquid in gas   
 
BIOLOGY 
128. 4  
Measles, Rabies & Polio are caused by viruses while Tuberculosis is a bacterial disease 
caused by Mycobacterium tuberculii. 
129. 1 
 Marasmus is a PEM (Protein energy Malnutrition) caused in children between 0-1 years. 
130. 2 
 Sonalika is a high yielding variety of wheat. 
131. 1 
Red Blood Corpuscles are cells without nucleus. 
132. 2 
 Lamarckism is based on – (i) Use and disuse of organs (ii) Inheritance of acquired characters. 
 Other three options are related to Darwinism. 
133. 3 
 Pepsin is not found in pancreatic juice but found in gastric juice secreted by stomach. 
134. 4 
 Sodium benzoate is a chemical used as preservative in Jams and jelly. 
Page 5


 
 
 
 
 
 
 
F     
F     
    
National Talent Search State Level Examination – 2018 
Answer Key & Solutions 
PART – I GENERAL MENTAL ABILITY TEST 
1. 3  2. 1  3. 4  4. 3  5. 4 
6. 3  7. 2  8. 1  9. 3  10. 4 
11. 2  12. 1  13. 2  14. 4  15. 3 
16. 1  17. 2  18. 4  19. 3  20. 1 
21. 2  22. 4  23. 3  24. 2  25. 1 
26. *  27. 3  28. 1  29. 2  30. 3 
31. 4  32. 1  33. 2  34. 3  35. 2 
36. 1  37. 3  38. 4  39. 2  40. 1 
41. 1  42. 4  43. 2  44. 3  45. 2 
46. 3  47. 4  48. 4  49. 3  50. 2 
PART – II LANGUAGE COMPREHENSIVE TEST 
51. 4  52. 1  53. 1  54. 2  55. 4 
56. 2  57. 2  58. 3  59. 3  60. 1 
61. 2  62. 4  63. 3  64. 1  65. 4 
66. 3  67. 1  68. 1  69. 4  70. 2 
71. 2  72. 2  73. 2  74. 4  75. 1 
76. 2  77. 2  78. 1  79. 1  80. 4 
81. 3  82. 4  83. 3  84. 4  85. 2 
86. 2  87. 2  88. 3  89. 4  90. 3 
91. 4  92. 1  93. 4  94. 1  95. 4 
96. 1  97. 3  98. 4  99. 4  100. 4 
PART – III SCHOLASTIC APTITUDE TEST 
PHYSICS  
101. 3  102. 3  103. 4  104. 4  105. 3 
106. 2  107. 2  108. 1  109. 1  110. 1 
111. 1  112. 3  113. 3 
CHEMISTRY  
114. 3  115. 1  116. 2  117. 3  118. 1 
119. 1  120. 2  121. 1  122. 3  123. 4 
124. 3  125. 4  126. 4  127. 2 
BIOLOGY 
128. 4  129. 1  130. 2  131. 1  132. 2 
133. 3  134. 4  135. 1  136. 4  137. 2 
138. 3  139. 1  140. 4 
SOCIAL SCIENCE 
141. 2  142. 2  143. 2  144. 3  145. 1 
146. 1  147. 4  148. 3  149. 3  150. 1 
151. 1  152. 2  153. 1  154. 4  155. 3 
156. 2  157. 3  158. 2  159. 3  160. 4 
161. 1  162. 1  163. 2  164. 2  165. 3 
166. 4  167. 4  168. 2  169. 1  170. 3 
171. 4  172. 3  173. 2  174. 1  175. 3 
176. 2  177. 2  178. 3  179. 2  180. 3 
MATHEMATICS 
181. 4  182. 1  183. 3  184. 1  185. 2 
186. 2  187. 3  188. 2  189. 4  190. 3 
191. 3  192. 1  193. 2  194. 1  195. 1 
196. 3  197. 3  198. 3  199. 1  200. 2 
 
 
 
 
 
 
 
F     
F     
    
SOLUTION 
PART – I GENERAL MENTAL ABILITY TEST 
4. 3 
perfect square       
10. 4 
(6
4
 – 6) 
13. 2 
difference       
14. 4 
differences (3, 0, 6, 1, 9, 2, 12, 3) 
16. 1 
n
3
 + 1       
19. 3 
FERK 
20. 1 
WVKX       
34. 3 
7 × 4 – 9      
35. 2 
(4 ? 8) × 6 
36. 1 
3 × 5 + 4      
37. 3 
3 + 6 + 4 = 13 = 1 + 4 
38. 4 
add ? 3       
41. 1 
V > S > T > R U 
 
PART – III SCHOLASTIC APTITUDE TEST 
PHYSICS  
101. 3 
 Resistance is obstruction to the flow of electric current. 
 
102. 3 
 Radiation  
Conduction and  convention needs medium to travel, while radiation does not need medium to 
travel.  
 
103. 4 
 1000 cubic centimeter 
 
? ?
33
3
3 3 6 3
33
1 litre = 10 m
1 meter = 100 cm
1 litre = 10 100 cm 10 10 cm
1 litre = 10 cm
?
??
? ? ?
 
104. Irregular & non – periodic vibration  
Music is produced by regular and periodic vibrations 
 Noise is produced by irregular & non – periodic vibrations.  
 
 
 
 
 
 
 
F     
F     
    
 
105. 3 
  
 
 
 
 
Ray which passes through optical centre remains undeviated.   
 
106. 2 
 
? ?
? ?
5
C F 32
9
C F 32
100 180
9
C F 32
5
5
C F 32
9
??
?
?
? ? ?
? ? ?
 
 
107. 2 
Due to refraction when a light ray passes from dense medium is rarer medium it bends away 
from normal. 
 
108. 1 
4 Meter. Image formed by the plane mirror is at equal distance as that of the object from plane 
mirror. 
 
109. 1 
According to the law of floation weight of a floating body is equal to the weight of displaced 
liquid.  
?Ans (1) wt. of displaced liquid. 
 
110. 1 
 ? ?
12
Req R R
22
4 
??
? ? ?
??
 
 
? ?
12
1 1 1
Req R R
1 1 2
1
2 2 2
1 4 ,1 
??
? ? ? ?
??
 
 
111. 1 
Second’s needle of clock completer one revolution in one minute. Therefore its time period 
will be 1 minute. 
 
112. 3 
When an object is placed between two plane mirror infinite number of images will be formed. 
 
o 
 
 
 
 
 
 
 
F     
F     
    
113. In long lightens images is formed behind Retina. 
 
CHEMISTRY  
114. 3 
Ethylene double Bond 
115. 1 
All non-metal oxide on reacting with water gives Acidic solution  
116. 2 
Stainless steel contains Iron, Chromium, Carbon 
117. 3 
Anthracite has maximum percentage of carbon  
118. 1 
Factual  
119. 1 
22
Zn 2HCl ZnCl H ? ? ? ? 
120. 2 
Bromine liquid at room temperature  
121. 1 
Na reacts with cold water to give H2 gas  
122. 3 
Factual  
123. 4 
Flint glass (Factual) 
124. 3 
Controlled nuclear fission required in nuclear reactor. 
125. 4 
Factual  
126. 4 
2 2 2 2 2
CaC H O C H Ca(OH) ? ? ? 
127. 2 
Fog ? liquid in gas   
 
BIOLOGY 
128. 4  
Measles, Rabies & Polio are caused by viruses while Tuberculosis is a bacterial disease 
caused by Mycobacterium tuberculii. 
129. 1 
 Marasmus is a PEM (Protein energy Malnutrition) caused in children between 0-1 years. 
130. 2 
 Sonalika is a high yielding variety of wheat. 
131. 1 
Red Blood Corpuscles are cells without nucleus. 
132. 2 
 Lamarckism is based on – (i) Use and disuse of organs (ii) Inheritance of acquired characters. 
 Other three options are related to Darwinism. 
133. 3 
 Pepsin is not found in pancreatic juice but found in gastric juice secreted by stomach. 
134. 4 
 Sodium benzoate is a chemical used as preservative in Jams and jelly. 
 
 
 
 
 
 
 
F     
F     
    
135. 1 
 Retinol is common name of Vitamin A. 
136. 4 
 Thiamine is scientific name of vitamin B1, not found in RNA. 
137. 2 
 Maize is anemophilous flower in which pollination takes place by air. 
138. 3 
 Platypus is an egg laying mammal, most primitive mammal. 
139. 1 
 Silver fish is an insect belongs to phylum – Arthropoda, not a true fish. 
140. 4 
 BCG is a vaccine for tuberculosis developed by Calmette-Guerin. 
 
MATHEMATICS 
181. 4 
 ? ?
? ?
44
2
2 2 2
2
2
x 4y
x 2y 4x y
x 2y
?
??
?
 
182. 1 
24 
 
1
6 8 24
x
? ? ? 
183. 3 
10 25 11 10 6 16 4 ? ? ? ? ? ? 
184. 1 
 
? ? ? ?
1
1 5 b 3 b 2 0 0
2
5 b 3b 6 0
2b 1
b 1/ 2
?? ? ? ? ? ?
??
? ? ? ? ?
?
?
 
185. 2 
? ?
3
t 2t 1 ?? 
186. 2 
radii 2r, 3r 
 higt 4h,3h 
 
2
2
22
1
rh
4r 4h 16 16
3
3h 27 3 81
r h 3 9r
?
? ? ? ?
?
??
 
187. 3 
2 r 14 ?? 
2
77
r
22
2 rh 14 20 280 cm
?
?
? ? ? ?
 
188. 2 
? ? 5 180 ? ? ? ? 
20 
14 
6 10 
8 
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