Multiple Choice Questions (MCQs) for JEE Chemistry: Polymers
Review structured MCQ sets for JEE Chemistry Polymers. Built according to official JEE guidelines, these downloadable questions support daily revision and core concept reinforcement.
Practice Polymers MCQs for JEE Chemistry
Access the complete set of multiple-choice questions for Polymers below. This focused format allows students to isolate specific topics for thorough review and uninterrupted practice alongside official JEE textbooks.
Multiple Choice Questions
(a) Polyvinyl chloride
(b) Bakelite
(c) Nylon
(d) Terylene
Show Answer & Explanation
Answer: (c) Nylon
Explanation:
1. Nylon is a polyamide made from monomers with amino groups, so its chain contains the amide linkage –CONH–.
2. Polyvinyl chloride is made from vinyl chloride and has no nitrogen.
3. Bakelite (phenol and formaldehyde) and Terylene (ethylene glycol and terephthalic acid) also contain no nitrogen.
Teacher's Note:
1. P
2. o
3. l
4. y
5. a
6. m
7. i
8. d
9. e
10. s
11.
12. (
13. n
14. y
15. l
16. o
17. n
18. ,
19.
20. p
21. r
22. o
23. t
24. e
25. i
26. n
27. s
28. )
29.
30. c
31. o
32. n
33. t
34. a
35. i
36. n
37.
38. n
39. i
40. t
41. r
42. o
43. g
44. e
45. n
46. ,
47.
48. w
49. h
50. i
51. l
52. e
53.
54. p
55. o
56. l
57. y
58. e
59. s
60. t
61. e
62. r
63. s
64.
65. (
66. T
67. e
68. r
69. y
70. l
71. e
72. n
73. e
74. ,
75.
76. g
77. l
78. y
79. p
80. t
81. a
82. l
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84.
85. d
86. o
87.
88. n
89. o
90. t
91. .
92.
93. T
94. h
95. i
96. s
97.
98. i
99. s
100.
101. a
102.
103. q
104. u
105. i
106. c
107. k
108.
109. t
110. e
111. s
112. t
113.
114. f
115. o
116. r
117.
118. s
119. u
120. c
121. h
122.
123. q
124. u
125. e
126. s
127. t
128. i
129. o
130. n
131. s
132. .
(a) they are non-ionic
(b) their Ca²⁺ and Mg²⁺ salts are insoluble in water
(c) their Ca²⁺ and Mg²⁺ salts are water soluble
(d) they are highly soluble in water
Show Answer & Explanation
Answer: (c) their Ca²⁺ and Mg²⁺ salts are water soluble
Explanation:
1. Soaps form insoluble scum with Ca²⁺ and Mg²⁺ ions in hard water, wasting soap.
2. The calcium and magnesium salts of detergents (sulphates or sulphonates) are soluble.
3. So detergents keep their cleaning action in hard water.
Teacher's Note:
1. D
2. e
3. t
4. e
5. r
6. g
7. e
8. n
9. t
10. s
11.
12. a
13. r
14. e
15.
16. s
17. a
18. l
19. t
20. s
21.
22. o
23. f
24.
25. s
26. t
27. r
28. o
29. n
30. g
31.
32. a
33. c
34. i
35. d
36. s
37.
38. a
39. n
40. d
41.
42. g
43. i
44. v
45. e
46.
47. n
48. e
49. u
50. t
51. r
52. a
53. l
54.
55. s
56. o
57. l
58. u
59. t
60. i
61. o
62. n
63. s
64. ,
65.
66. w
67. h
68. e
69. r
70. e
71. a
72. s
73.
74. s
75. o
76. a
77. p
78. s
79.
80. a
81. r
82. e
83.
84. s
85. a
86. l
87. t
88. s
89.
90. o
91. f
92.
93. w
94. e
95. a
96. k
97.
98. a
99. c
100. i
101. d
102. s
103. .
104.
105. T
106. h
107. e
108. i
109. r
110.
111. s
112. o
113. l
114. u
115. b
116. l
117. e
118.
119. C
120. a
121.
122. a
123. n
124. d
125.
126. M
127. g
128.
129. s
130. a
131. l
132. t
133. s
134.
135. a
136. r
137. e
138.
139. t
140. h
141. e
142.
143. k
144. e
145. y
146.
147. a
148. d
149. v
150. a
151. n
152. t
153. a
154. g
155. e
156. .
(a) copolymers
(b) condensation polymers
(c) homopolymers
(d) monomers
Show Answer & Explanation
Answer: (c) homopolymers
Explanation:
1. Teflon is made from one monomer, tetrafluoroethene.
2. Styron (polystyrene) is made from styrene alone and neoprene from chloroprene alone.
3. Each is formed from a single type of monomer by addition, so all three are homopolymers.
Teacher's Note:
1. A
2.
3. h
4. o
5. m
6. o
7. p
8. o
9. l
10. y
11. m
12. e
13. r
14.
15. h
16. a
17. s
18.
19. o
20. n
21. e
22.
23. k
24. i
25. n
26. d
27.
28. o
29. f
30.
31. r
32. e
33. p
34. e
35. a
36. t
37. i
38. n
39. g
40.
41. u
42. n
43. i
44. t
45. .
46.
47. B
48. u
49. n
50. a
51. -
52. S
53.
54. a
55. n
56. d
57.
58. B
59. u
60. n
61. a
62. -
63. N
64.
65. a
66. r
67. e
68.
69. e
70. x
71. a
72. m
73. p
74. l
75. e
76. s
77.
78. o
79. f
80.
81. c
82. o
83. p
84. o
85. l
86. y
87. m
88. e
89. r
90. s
91. .
(a) \( \ce{HOOC(CH2)4COOH} \) + \( \ce{H2N(CH2)6NH2} \)
(b) \( \ce{CH2=CH-C(CH3)=CH2} \) (isoprene)
(c) \( \ce{CH2=CH2} \)
(d) terephthalic acid + ethylene glycol
Show Answer & Explanation
Answer: (a) \( \ce{HOOC(CH2)4COOH} \) + \( \ce{H2N(CH2)6NH2} \)
Explanation:
1. Nylon-66 is formed by condensation of adipic acid (six carbons) with hexamethylenediamine (six carbons).
2. The first 6 in the name refers to the diamine and the second to the diacid.
3. Isoprene gives natural rubber, ethene gives polythene and the last pair gives Terylene.
Teacher's Note:
1. T
2. h
3. e
4.
5. t
6. w
7. o
8.
9. n
10. u
11. m
12. b
13. e
14. r
15. s
16.
17. i
18. n
19.
20. n
21. y
22. l
23. o
24. n
25. -
26. 6
27. 6
28.
29. a
30. r
31. e
32.
33. t
34. h
35. e
36.
37. n
38. u
39. m
40. b
41. e
42. r
43. s
44.
45. o
46. f
47.
48. c
49. a
50. r
51. b
52. o
53. n
54.
55. a
56. t
57. o
58. m
59. s
60.
61. i
62. n
63.
64. t
65. h
66. e
67.
68. d
69. i
70. a
71. m
72. i
73. n
74. e
75.
76. a
77. n
78. d
79.
80. t
81. h
82. e
83.
84. d
85. i
86. a
87. c
88. i
89. d
90. .
91.
92. N
93. y
94. l
95. o
96. n
97. -
98. 6
99.
100. i
101. s
102.
103. m
104. a
105. d
106. e
107.
108. f
109. r
110. o
111. m
112.
113. c
114. a
115. p
116. r
117. o
118. l
119. a
120. c
121. t
122. a
123. m
124.
125. a
126. l
127. o
128. n
129. e
130. .
(a) \( -[NH(CH_2)_6NHCO(CH_2)_4CO]- \)
(b) \( -[CO(CH_2)_5NH]- \)
(c) \( -[CO(CH_2)_6NH]- \)
(d) \( -[CO(CH_2)_4NH]- \)
Show Answer & Explanation
Answer: (b) \( -[CO(CH_2)_5NH]- \)
Explanation:
1. Nylon-6 is obtained by ring-opening polymerisation of caprolactam, which has six carbons including the carbonyl carbon.
2. Each unit therefore has one CO and five CH₂ groups joined to one NH.
3. The repeating unit is \( -[CO(CH_2)_5NH]- \).
Teacher's Note:
1. T
2. h
3. e
4.
5. 6
6.
7. i
8. n
9.
10. n
11. y
12. l
13. o
14. n
15. -
16. 6
17.
18. i
19. s
20.
21. t
22. h
23. e
24.
25. t
26. o
27. t
28. a
29. l
30.
31. n
32. u
33. m
34. b
35. e
36. r
37.
38. o
39. f
40.
41. c
42. a
43. r
44. b
45. o
46. n
47.
48. a
49. t
50. o
51. m
52. s
53.
54. i
55. n
56.
57. t
58. h
59. e
60.
61. m
62. o
63. n
64. o
65. m
66. e
67. r
68. .
69.
70. O
71. p
72. t
73. i
74. o
75. n
76.
77. (
78. a
79. )
80.
81. i
82. s
83.
84. t
85. h
86. e
87.
88. r
89. e
90. p
91. e
92. a
93. t
94. i
95. n
96. g
97.
98. u
99. n
100. i
101. t
102.
103. o
104. f
105.
106. n
107. y
108. l
109. o
110. n
111. -
112. 6
113. 6
114. .
(a) Melamine
(b) Glyptal
(c) Dacron
(d) Neoprene
Show Answer & Explanation
Answer: (d) Neoprene
Explanation:
1. Melamine–formaldehyde, glyptal and Dacron are formed by condensation with loss of small molecules such as water.
2. Neoprene is made by addition polymerisation of chloroprene, \( \ce{CH2=CH-C(Cl)=CH2} \), using peroxides.
3. So neoprene is the addition polymer.
Teacher's Note:
1. C
2. o
3. n
4. d
5. e
6. n
7. s
8. a
9. t
10. i
11. o
12. n
13.
14. p
15. o
16. l
17. y
18. m
19. e
20. r
21. s
22.
23. l
24. o
25. s
26. e
27.
28. s
29. m
30. a
31. l
32. l
33.
34. m
35. o
36. l
37. e
38. c
39. u
40. l
41. e
42. s
43.
44. l
45. i
46. k
47. e
48.
49. w
50. a
51. t
52. e
53. r
54.
55. o
56. r
57.
58. H
59. C
60. l
61. .
62.
63. R
64. u
65. b
66. b
67. e
68. r
69. s
70.
71. l
72. i
73. k
74. e
75.
76. n
77. e
78. o
79. p
80. r
81. e
82. n
83. e
84.
85. a
86. n
87. d
88.
89. B
90. u
91. n
92. a
93. -
94. S
95.
96. a
97. r
98. e
99.
100. a
101. d
102. d
103. i
104. t
105. i
106. o
107. n
108.
109. p
110. o
111. l
112. y
113. m
114. e
115. r
116. s
117. .
Assertion (A): Bakelite is a thermosetting polymer.
Reason (R): Bakelite can be melted again and again without any change.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is not the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.
Show Answer & Explanation
Answer: (c) A is true, but R is false.
Explanation:
1. Bakelite is a cross-linked thermosetting polymer, so the assertion is true.
2. Thermosetting polymers set permanently on heating and cannot be remelted, so the reason is false.
3. Assertion true, reason false.
Teacher's Note:
1. T
2. h
3. e
4. r
5. m
6. o
7. p
8. l
9. a
10. s
11. t
12. i
13. c
14. s
15.
16. s
17. o
18. f
19. t
20. e
21. n
22.
23. r
24. e
25. p
26. e
27. a
28. t
29. e
30. d
31. l
32. y
33.
34. o
35. n
36.
37. h
38. e
39. a
40. t
41. i
42. n
43. g
44. ,
45.
46. t
47. h
48. e
49. r
50. m
51. o
52. s
53. e
54. t
55. s
56.
57. d
58. o
59.
60. n
61. o
62. t
63. .
64.
65. B
66. a
67. k
68. e
69. l
70. i
71. t
72. e
73.
74. c
75. a
76. n
77.
78. b
79. e
80.
81. m
82. o
83. u
84. l
85. d
86. e
87. d
88.
89. o
90. n
91. l
92. y
93.
94. o
95. n
96. c
97. e
98. .
Assertion (A): In the vulcanisation of rubber, sulphur cross links are introduced.
Reason (R): Vulcanisation is a free radical initiated chain reaction.
(a) Both A and R are true, and R is the correct explanation of A.
(b) Both A and R are true, but R is not the correct explanation of A.
(c) A is true, but R is false.
(d) A is false, but R is true.
Show Answer & Explanation
Answer: (b) Both A and R are true, but R is not the correct explanation of A.
Explanation:
1. Heating natural rubber with sulphur forms –S–S– cross links between chains, so the assertion is true.
2. Vulcanisation proceeds through radical sulphur species, so the reason is also accepted as true.
3. The reason describes the mechanism, not why cross links form, so it does not explain the assertion.
Teacher's Note:
1. C
2. r
3. o
4. s
5. s
6.
7. l
8. i
9. n
10. k
11. i
12. n
13. g
14.
15. g
16. i
17. v
18. e
19. s
20.
21. r
22. u
23. b
24. b
25. e
26. r
27.
28. s
29. t
30. r
31. e
32. n
33. g
34. t
35. h
36. ,
37.
38. e
39. l
40. a
41. s
42. t
43. i
44. c
45. i
46. t
47. y
48.
49. a
50. n
51. d
52.
53. r
54. e
55. s
56. i
57. s
58. t
59. a
60. n
61. c
62. e
63.
64. t
65. o
66.
67. w
68. e
69. a
70. r
71. .
72.
73. F
74. r
75. e
76. e
77.
78. r
79. a
80. d
81. i
82. c
83. a
84. l
85.
86. s
87. t
88. e
89. p
90. s
91.
92. d
93. e
94. s
95. c
96. r
97. i
98. b
99. e
100.
101. h
102. o
103. w
104.
105. s
106. u
107. l
108. p
109. h
110. u
111. r
112.
113. a
114. d
115. d
116. s
117. ,
118.
119. w
120. h
121. i
122. c
123. h
124.
125. i
126. s
127.
128. a
129.
130. d
131. i
132. f
133. f
134. e
135. r
136. e
137. n
138. t
139.
140. p
141. o
142. i
143. n
144. t
145.
146. f
147. r
148. o
149. m
150.
151. t
152. h
153. e
154.
155. i
156. n
157. t
158. r
159. o
160. d
161. u
162. c
163. t
164. i
165. o
166. n
167.
168. o
169. f
170.
171. c
172. r
173. o
174. s
175. s
176.
177. l
178. i
179. n
180. k
181. s
182. .
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FAQs
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Yes, our JEE Chemistry Polymers MCQs Set 19 include the latest type of questions, such as Assertion-Reasoning and Case-based MCQs. 50% of the JEE paper is now competency-based.
By solving our JEE Chemistry Polymers MCQs Set 19, JEE students can improve their accuracy and speed which is important as objective questions provide a chance to secure 100% marks in the Chemistry.
Yes, Chemistry MCQs for JEE have answer key and brief explanations to help students understand logic behind the correct option as its important for 2026 competency-focused JEE exams.
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