Polymers

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JEE Advanced 2026

LEVELJEE Advanced

In the following reaction sequence, major products X and Y are acyclic monomers. 500 mol of X completely reacts with 500 mol of Y to give 1 mol of a single biodegradable acyclic copolymer Z as the only product. The amount of Z formed in grams is _____. Given: Atomic mass (in amu): H : 1, C : 12, N : 14, O : 16, Br : 80

JEE Advanced 2025

LEVELJEE Main

The monomer (X) involved in the synthesis of Nylon 6,6 gives positive carbylamine test. If 10 moles of X are analyzed using Dumas method, the amount (in grams) of nitrogen gas evolved is _______. Use: Atomic mass of N (in amu) = 14

JEE Advanced 2022

LEVELJEE Main

H_{2} C = CH - C ∣ Cl = CH_{2} and H_{2} C = CH - CH = CH_{2}

(B)

H_{2} C = CH - CH = CH_{2} and H_{5} C_{6} - CH = CH_{2}

(C)

H_{2} C = CH - CN and H_{2} C = CH - CH = CH_{2}

(D)

H_{2} C = CH - CN and H_{2} C = CH_{3} ∣ C - CH_{2}

JEE Main 2019

LEVELJEE Main

The correct name of the following polymer is

The formation of which of the following polymers involves hydrolysis reaction?

Consider the Assertion and Reason given below. Assertion (A) Ethene polymerised in the presence of Ziegler-Natta catalyst at high temperature and pressure is used to make buckets and dustbins. Reason (R) High density polymers are closely packed and are chemically inert. Choose the correct answer from the following:

(A)

(A) is correct but (R) is wrong.

(B)

Both (A) and (R) are correct but (R) is not the correct explanation of (A).

(C)

Both (A) and (R) are correct and (R) is the correct explanation of (A).

(D)

(A) and (R) both are wrong.

JEE Main 2020

LEVELJEE Main

The correct match between Item - I and Item - II is : \begin{array}{llll} & \textbf{Item - I} & & \textbf{Item - II} \\ \text{(A)} & \text{Natural rubber} & \text{(I)} & \text{1,3- butadiene + styrene} \\ \text{(B)} & \text{Neoprene} & \text{(II)} & \text{1,3- butadiene + acrylonitrile} \\ \text{(C)} & \text{Buna -N} & \text{(III)} & \text{Chloroprene} \\ \text{(D)} & \text{Buna -S} & \text{(IV)} & \text{Isoprene} \end{array}

(A)

(A)-(III), (B)-(IV), (C)-(I), (D)-(II)

(B)

(A)-(III), (B)-(IV), (C)-(II), (D)-(I)

(C)

(A)-(IV), (B)-(III), (C)-(II), (D)-(I)

(D)

(A)-(IV), (B)-(III), (C)-(I), (D)-(II)

JEE Main 2019

LEVELJEE Main

Which of the following compounds is a constituent of the polymer $— HN — C ∣∣ O — NH — CH_{2} —_{n}$ ?

Which of the following is a polyamide?

The species which can best serve as an initiator for the cationic polymerization is

(A)

LiAlH_{4}

(B)

HNO_{3}

(C)

AlCl_{3}

(D)

BaLi

JEE Main 2021

LEVELJEE Main

Match List-I with List-II. $List-I (Chemicals) (A) Alcoholic potassium hydroxide (B) Pd/BaSO_{4} (C) BHC (Benzene hexachloride) (D) Polyacetylene List-II (Use / Preparation / Constituent) (i) Electrodes in batteries (ii) Obtained by addition reaction (iii) Used for β -elimination reaction (iv) Lindlar catalyst$ Choose the most appropriate match

(A)

(A)-(ii), (B)-(i), (C)-(iv), (D)-(iii)

(B)

(A)-(iii), (B)-(iv), (C)-(ii), (D)-(i)

(C)

(A)-(iii), (B)-(i), (C)-(iv), (D)-(ii)

(D)

(A)-(ii), (B)-(iv), (C)-(i), (D)-(iii)

JEE Main 2021

LEVELJEE Main

Which among the following is not a polyester ?

The structure of neoprene is

Poly- $β$ -hydroxybutyrate-Co- $β$ -hydroxyvalerate (PHBV) is a copolymer of ......

(A)

3-hydroxybutanoic acid and 2-hydroxypentanoic acid

(B)

2-hydroxybutanoic acid and 3-hydroxypentanoic acid

(C)

3-hydroxybutanoic acid and 4-hydroxypentanoic acid

(D)

3-hydroxybutanoic acid and 3-hydroxypentanoic acid

JEE Main 2020

LEVELJEE Main

Preparation of bakelite proceeds via reactions

(A)

Electrophilic addition and dehydration

(B)

Condensation and elimination

(C)

Nucleophilic addition and dehydration

(D)

Electrophilic substitution and dehydration

JEE Main 2019

LEVELBoard

The two monomers for the synthesis of nylon 6, 6 are

(A)

HOOC(CH_{2})_{4} COOH, H_{2} N(CH_{2})_{4} NH_{2}

(B)

HOOC(CH_{2})_{6} COOH, H_{2} N(CH_{2})_{4} NH_{2}

(C)

HOOC(CH_{2})_{4} COOH, H_{2} N(CH_{2})_{6} NH_{2}

(D)

HOOC(CH_{2})_{6} COOH, H_{2} N(CH_{2})_{6} NH_{2}

JEE Main 2019

LEVELJEE Main

The homopolymer formed from 4-hydroxybutanoic acid is

In polymer buna-S: 'S' stands for

Match List I with List II. \begin{array}{ll} \textbf{List I} & \textbf{List II} \\ \text{(A) Chloroprene} & \text{(i)} \\ \text{(B) Neoprene} & \text{(ii)} \\ \text{(C) Acrylonitrile} & \text{(iii)} \\ \text{(D) Isoprene} & \text{(iv) } \mathrm{CH_2=CH-CN} \end{array} Choose the correct answer from the options given below.

(A)

A-(iii), B-(iv), C-(ii), D-(i)

(B)

A-(ii), B-(iii), C-(iv), D-(i)

(C)

A-(ii), B-(i), C-(iv), D-(iii)

(D)

A-(iii), B-(i), C-(iv), D-(ii)

JEE Main 2019

LEVELJEE Main

The structure of nylon-6 is

(A)

[-(CH_{2})_{6} -C(=O)-NH-]_{n}

(B)

[-C(=O)-(CH_{2})_{5} -NH-]_{n}

(C)

[-(CH_{2})_{4} -C(=O)-NH-]_{n}

(D)

[-C(=O)(CH_{2})_{6} -NH-]_{n}

LEVELBoard

Monomers are converted to polymer by

(A)

hydrolysis of monomers

(B)

condensation reaction between monomers

(C)

protonation of monomers

(D)

None of the above

The monomer (X) involved in the synthesis of Nylon 6,6 gives positive carbylamine test. If 10 moles of X are analyzed using Dumas method, the amount (in grams) of nitrogen gas evolved is _______. Use: Atomic mass of N (in amu) = 14

Among the following, the correct statement(s) about polymers is(are)

On complete hydrogenation, natural rubber produces

Which of the following polymer is used in the manufacture of wood laminates?

Orlon fibres are made up of

Buna-N synthetic rubber is a copolymer of

The correct name of the following polymer is

The formation of which of the following polymers involves hydrolysis reaction?

.math-text-wrapper .katex { font-size: 1.05em !important; } .math-text-wrapper .katex-display { margin: 1rem 0 !important; } Which of the following compounds is a constituent of the polymer ​—HN—C∣∣O—NH—CH2​—​n​ ?

Which of the following is a polyamide?

The species which can best serve as an initiator for the cationic polymerization is

Which among the following is not a polyester ?

The structure of neoprene is

.math-text-wrapper .katex { font-size: 1.05em !important; } .math-text-wrapper .katex-display { margin: 1rem 0 !important; } Poly-β-hydroxybutyrate-Co-β-hydroxyvalerate (PHBV) is a copolymer of ......

Preparation of bakelite proceeds via reactions

The two monomers for the synthesis of nylon 6, 6 are

The homopolymer formed from 4-hydroxybutanoic acid is

In polymer buna-S: 'S' stands for

The structure of nylon-6 is

Monomers are converted to polymer by

Which of the following compounds is a constituent of the polymer $— HN — C ∣∣ O — NH — CH_{2} —_{n}$ ?

Poly- $β$ -hydroxybutyrate-Co- $β$ -hydroxyvalerate (PHBV) is a copolymer of ......