Polymers - Organic Chemistry - Chemistry Previous Year Questions

1

2017 · Chemistry · Organic Chemistry · Polymers

KCET 2017

Which of the following is not a biodegradable polymer?

A

Glyptol

B

Polyhydroxy butyrate - $\mathrm{CO}-\beta$-hydroxy valerate

C

PHBV

D

Nylon 2-nylon-6

Open complete paper

2

2017 · Chemistry · Organic Chemistry · Polymers

KCET 2017

The monomer used in novolac, a polymer used in paints

A

melamine and formaldehyde

B

phenol and formaldehyde

C

butadiene and acrylo nitrile

D

butadiene and styrene

Open complete paper

3

2018 · Chemistry · Organic Chemistry · Polymers

KCET 2018

$\left(\mathrm{CH}_3\right)_3 \mathrm{SiCl}$ is used during polymerisation of organosilicons because

A

the chain length of organosilicon polymers can be controlled by adding $\left(\mathrm{CH}_3\right)_3 \mathrm{SiCl}$

B

$\left(\mathrm{CH}_3\right)_3 \mathrm{SiCl}$ improves the quality and yield of the polymer

C

$\left(\mathrm{CH}_3\right)_3 \mathrm{SiCl}$ does not block the end terminal of silicone polymer

D

$\left(\mathrm{CH}_3\right)_3 \mathrm{SiCl}$ acts are as a catalyst during polymerisation

Open complete paper

4

2018 · Chemistry · Organic Chemistry · Polymers

KCET 2018

Ziegler-Natta catalyst is used to prepare

A

low-density polythene

B

teflon

C

high density polythene

D

nylon-6

Open complete paper

5

2018 · Chemistry · Organic Chemistry · Polymers

KCET 2018

Which one of the following is a polyamide polymer?

A

Terylene

B

Nylon-6, 6

C

Buna-S

D

Bakelite

Open complete paper

6

2018 · Chemistry · Organic Chemistry · Polymers

KCET 2018

Among the following, the branched chain polymer is

A

polyvinyl chloride

B

bakelite.

C

low density polythene

D

high density polythene

Open complete paper

7

2019 · Chemistry · Organic Chemistry · Polymers

KCET 2019

Cis-1, 4-polyisoprene is called

A

buna- \(\mathrm{N}\)

B

neoprene

C

buna-S

D

natural rubber

Open complete paper

8

2019 · Chemistry · Organic Chemistry · Polymers

KCET 2019

The polymer containing five methylene groups in it s repeating unit is

A

nylon 6/6

B

nylon 6

C

dacron

D

bakelite

Open complete paper

9

2020 · Chemistry · Organic Chemistry · Polymers

KCET 2020

Which of the following monomers can undergo condensation polymerisation?

A

Styrene

B

Glycine

C

Isoprene

D

Propene

Open complete paper

10

2020 · Chemistry · Organic Chemistry · Polymers

KCET 2020

Which of the following polymer has strongest intermolecular forces of attraction?

A

Neoprene

B

Terylene

C

Polythene

D

Polystyrene

Open complete paper

11

2022 · Chemistry · Organic Chemistry · Polymers

KCET 2022

Which of the following is correctly matched?

A

Teflon - Caprolactum

B

Bakelite - Novolac

C

Polyester - Tetrafluoroethene

D

Nylon - Acrylonitrile

Open complete paper

12

2023 · Chemistry · Organic Chemistry · Polymers

KCET 2023

Match the List-I with List - I in the following.

	List-I		List-II
1.	Caprolactum	a.
2.	Vinyl chloride	b.
3.	Styrene	c.
4.	Propene	d.

A

1-c, 2-d, 3-a, 4-b

B

1-a, 2-d, 3-c, 4-b

C

1-d, 2-c, 3-a, 4-b

D

1-d, 2-c, 3-b, 4-a

Open complete paper

13

2023 · Chemistry · Organic Chemistry · Polymers

KCET 2023

Which of the following monomers form biodegradable polymers ?

A

Ethylene glycol and phthalic acid

B

Caprolactum and 1, 3-butadiene

C

Phenol and formaldehyde

D

3-hydroxybutanoic acid and 3-hydroxypentanoic acid

Open complete paper

14

2024 · Chemistry · Organic Chemistry · Polymers

KCET 2024

Which of the following set of polymers are used as fibre?

(i) Teflon (ii) Starch (iii) Terylene (iv) Orlon

A

(i) and (ii)

B

(ii) and (iii)

C

(iii) and (iv)

D

(i) and (iv)

Open complete paper

15

2024 · Chemistry · Organic Chemistry · Polymers

KCET 2024

The biodegradable polymer obtained by polymerisation of glycine and aminocaproic acid is

A

nylon 6

B

PHBV

C

nylon-2, nylon-6

D

nylon-6, 10

Open complete paper