NEET > Polymers

Explore popular questions from Polymers for NEET. This collection covers Polymers previous year NEET questions hand picked by popular teachers.


Q 1.    

Correct4

Incorrect-1

Which one of the following structures represents nylon {tex} 6,6 {/tex} polymer?

A

B

C

Explanation

Q 2.    

Correct4

Incorrect-1

Natural rubber has

A

alternate cis- and trans-configuration

B

random cis- and trans-configuration

all cis-configuration

D

all trans-configuration.

Explanation

Q 3.    

Correct4

Incorrect-1

Caprolactam is used for the manufacture of

A

teflon

B

terylene

C

nylon {tex} 6,6 {/tex}

nylon 6

Explanation

Q 4.    

Correct4

Incorrect-1

Biodegradable polymer which can be produced from glycine and aminocaproic acid is

A

buna-N

B

nylon {tex} 6,6 {/tex}

nylon{tex} 2{/tex} -nylon {tex}6{/tex}

D

{tex} \mathrm { PHBV } {/tex}

Explanation



Q 5.    

Correct4

Incorrect-1

Which one of the following is an example of thermosetting polymer?

A

B

C

Explanation





Q 6.    

Correct4

Incorrect-1

Which of the following organic compounds polymerizes to form the polyester dacron?

A

Propylene and para {tex}\mathrm{HO}- \left( \mathrm { C } _ { 6 } \mathrm { H } _ { 4 } \right) - \mathrm { OH } {/tex}

B

Benzoic acid and ethanol

Terephthalic acid and ethylene glycol

D

Benzoic acid and para {tex} \mathrm{HO}-\left( \mathrm { C } _ { 6 } \mathrm { H } _ { 4 } \right) - \mathrm { OH } {/tex}

Explanation



Q 7.    

Correct4

Incorrect-1

Nylon is an example of

polyamide

B

polythene

C

polyester

D

polysaccharide.

Explanation

Q 8.    

Correct4

Incorrect-1

Which is the monomer of neoprene in the following?

{tex} \mathrm { CH } _ { 2 } = \underset { \mathrm { Cl } } { \mathrm {\underset{\mid} C } } - \mathrm { CH } = \mathrm { CH } _ { 2 } {/tex}

B

{tex} \mathrm { CH } _ { 2 } = \mathrm { CH } - \mathrm { C } \equiv \mathrm { CH } {/tex}

C

{tex} \mathrm { CH } _ { 2 } = \mathrm { CH } - \mathrm { CH } = \mathrm { CH } _ { 2 } {/tex}

D

{tex} \mathrm { CH } _ { 2 } = \mathrm { \underset{\mid}C } - \mathrm { CH } = \mathrm { CH } _ { 2 } {/tex}
{tex} \qquad \,\,\,\mathrm { CH } _ { 3 } {/tex}

Explanation





Q 9.    

Correct4

Incorrect-1

Which one of the following is not a condensation polymer?

A

Melamine

B

Glyptal

C

Dacron

Neoprene

Explanation

Q 10.    

Correct4

Incorrect-1

Which of the following statements is false?

A

Artificial silk is derived from cellulose.

Nylon- {tex} 6,6 {/tex} is an example of elastomer.

C

The repeat unit in natural rubber is isoprene.

D

Both starch and cellulose are polymers of glucose.

Explanation

Q 11.    

Correct4

Incorrect-1

Which one of the following sets forms the biodegradable polymer?

A

{tex} \mathrm { CH } _ { 2 } = \mathrm { CH } - \mathrm { CN } {/tex} and {tex} \mathrm { CH } _ { 2 } = \mathrm { CH } - \mathrm { CH } = \mathrm { CH } _ { 2 } {/tex}

{tex} \mathrm { H } _ { 2 } \mathrm { N } - \mathrm { CH } _ { 2 } - \mathrm { COOH } {/tex} and {tex} \mathrm { H } _ { 2 } \mathrm { N } - \left( \mathrm { CH } _ { 2 } \right) _ { 5 } - \mathrm { COOH } {/tex}

C

{tex} \mathrm { HO } - \mathrm { CH } _ { 2 } - \mathrm { CH } _ { 2 } - \mathrm { OH } {/tex} and

D


and {tex} \mathrm { CH } _ { 2 } = \mathrm { CH } - \mathrm { CH } = \mathrm { CH } _ { 2 } {/tex}

Explanation

Q 12.    

Correct4

Incorrect-1

Of the following which one is classified as polyester polymer?

Terylene

B

Bakelite

C

Melamine

D

{tex} \mathrm { Nylon } - 6,6 {/tex}

Explanation

Q 13.    

Correct4

Incorrect-1

Which of the following structures represents neoprene polymer?

B

C

D

Explanation



Q 14.    

Correct4

Incorrect-1

Structures of some common polymers are given. Which one is not correctly presented?

(a) Neoprene- \[ \left[ \begin{array} { c } { \mathrm { CH } _ { 2 } - \mathrm { C } = \mathrm { CH } - \mathrm { CH } _ { 2 } - \mathrm { CH } _ { 2 } } \\ { \mathrm { Cl } } \end{array} \right] _ { n } \]

B

C

D

Explanation





Q 15.    

Correct4

Incorrect-1

Which one of the following statements is not true?

A

Buna-S is a copolymer of butadiene and styrene.

B

Natural rubber is a {tex} 1,4 {/tex} -polymer of isoprene.

C

In vulcanization, the formation of sulphur bridges between different chains make rubber harder and stronger.

Natural rubber has the trans-configuration at every double bond.

Explanation







Q 16.    

Correct4

Incorrect-1

Which one of the following polymers is prepared by condensation polymerisation?

A

Teflon

B

Natural rubber

C

Styrene

{tex} \mathrm { Nylon } - 6,6 {/tex}

Explanation





Q 17.    

Correct4

Incorrect-1

A

homopolymer

copolymer

C

addition polymer

D

thermosetting polymer.

Explanation



Q 18.    

Correct4

Incorrect-1

The monomer of the polymer

B

{tex} \mathrm { CH } _ { 3 } \mathrm { CH } = \mathrm { CHCH } _ { 3 } {/tex}

C

{tex} \mathrm { CH } _ { 3 } \mathrm { CH } = \mathrm { CH } _ { 2 } {/tex}

D

{tex} \left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { C } = \mathrm { C } \left( \mathrm { CH } _ { 3 } \right) _ { 2 } {/tex}

Explanation

Q 19.    

Correct4

Incorrect-1

Which one of the following is a chain growth polymer?

A

Starch

B

Nucleic acid

Polystyrene

D

Protein

Explanation









Q 20.    

Correct4

Incorrect-1

Acrilan is a hard, horny and a high melting material. Which one of the following represents its structure?

{tex} \left[ \begin{array} { c } { - \mathrm { CH } _ { 2 } - \mathrm { \underset{\mid}CH } - } \\ {\qquad \mathrm { CN } } \end{array} \right]_n {/tex}

B

C

{tex} \left[ \begin{array} { c } { - \mathrm { CH } _ { 2 } - \mathrm { \underset{\mid}CH } - } \\ {\qquad \qquad \qquad \mathrm { COOC } _ { 2 } \mathrm { H } _ { 5 } } \end{array} \right] _ { n } {/tex}

D

{tex} \left[ \begin{array} { c } { - \mathrm { CH } _ { 2 } - \mathrm { \underset{\mid}CH } - } \\ { \qquad \,\mathrm { Cl } } \end{array} \right] _ { n } {/tex}

Explanation



Q 21.    

Correct4

Incorrect-1

Which one of the following monomers gives the polymer neoprene on polymerization?

A

{tex} \mathrm { CH } _ { 2 } = \mathrm { CHCl } {/tex}

B

{tex} \mathrm { CCl } _ { 2 } = \mathrm { CCl } _ { 2 } {/tex}

{tex}\qquad \quad \mathrm { Cl } {/tex}
{tex} \mathrm { CH } _ { 2 } = \mathrm {\stackrel { \mid } C } - \mathrm { CH } = \mathrm { CH } _ { 2 } {/tex}

D

{tex} \mathrm { CF } _ { 2 } = \mathrm { CF } _ { 2 } {/tex}

Explanation

Q 22.    

Correct4

Incorrect-1

2 -methylpropene

B

styrene

C

propylene

D

ethene.

Explanation



Q 23.    

Correct4

Incorrect-1

Cellulose is polymer of

glucose

B

fructose

C

ribose

D

sucrose

Explanation



Q 24.    

Correct4

Incorrect-1

Which of the following is not correctly matched?

A

B

D

Explanation





Q 25.    

Correct4

Incorrect-1

{tex} \mathrm { CF } _ { 2 } = \mathrm { CF } _ { 2 } {/tex} is monomer of

teflon

B

Orlon

C

polythene

D

{tex} \mathrm { nylon } - 6 {/tex}

Explanation