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

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Polymers

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Q 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



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Q 2. 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

is the monomer of neoprene

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Q 3. Of the following which one is classified as polyester polymer?

Terylene

B

Bakelite

C

Melamine

D

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

Explanation


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Q 4. Which of the following structures represents neoprene polymer?

B

C

D

Explanation


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Q 5. 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





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Q 6. Which one of the following polymers is prepared by condensation polymerisation?

A

Teflon

B

Natural rubber

C

Styrene

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

Explanation




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Q 7. Which one of the following is a chain growth polymer?

A

Starch

B

Nucleic acid

Polystyrene

D

Protein

Explanation




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Q 8. Cellulose is polymer of

glucose

B

fructose

C

ribose

D

sucrose

Explanation



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Q 9. Which of the following is not correctly matched?

A

B

D

Explanation




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Q 10. Which compound forms linear polymer due to H-bond?

A

{tex} \mathrm { H } _ { 2 } \mathrm { O } {/tex}

{tex} \mathrm { NH } _ { 3 } {/tex}

C

{tex} \mathrm { HF } {/tex}

D

{tex} \mathrm { HCl } {/tex}

Explanation

{tex}NH_3{/tex} forms linear polymer due to Hydrogen bonding. Intermolecular Hydrogen bonding occurs between Nitrogen of one molecule and Hydrogen of other molecule. This continues and makes it a linear polymer.

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Q 11. Natural rubber is a polymer of

A

styrene

B

ethyne

C

butadiene

isoprene

Explanation



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Q 12. Terylene is a condensation polymer of ethylene glycol and

A

salicylic acid

B

phthalic acid

C

benzoic acid

terephthalic acid.

Explanation



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Q 13. Which one of the following is used to make 'non-stick' cookware?

A

Poly-ethylene terephthalate

Polytetrafluoroethylene

C

PVC

D

Polystyrene

Explanation



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Q 14. The bakelite is prepared by the reaction between

phenol and formaldehyde

B

tetramethylene glycol

C

urea and formaldehyde

D

ethylene glycol.

Explanation


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Q 15. Caprolactam is used for the manufacture of

A

teflon

B

terylene

C

nylon {tex} 6,6 {/tex}

nylon {tex}6{/tex}

Explanation

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Q 16. 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



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Q 17. 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

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Q 18. 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}

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Q 19. 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

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Q 20. 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



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Q 21. Monomer of is

2 -methylpropene

B

styrene

C

propylene

D

ethene.

Explanation


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Q 22. {tex} \mathrm { CF } _ { 2 } = \mathrm { CF } _ { 2 } {/tex} is monomer of

teflon

B

Orlon

C

polythene

D

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

Explanation

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Q 23. Generally, molecular mass of a polymer is over

A

{tex}100{/tex}

B

{tex}500{/tex}

C

{tex} 1,000 {/tex}

{tex} 10,000 {/tex}

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Q 24. Plexiglas (PMMA) is a polymer of

A

acrylic acid

B

methyl acrylate

C

methyl methacrylate

None of these

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Q 25. Which one of the following is not a condensation polymer?

A

Melamine

B

Glyptal

C

Dacron

Neoprene

Explanation