Question 1

Which of the following is/are internally cross-linked sodium carboxymethylcellulose(s) and is/are used as superdiasintegrant(s) in pharmaceutical formulations?

Croscarmellose sodium
Sodium cellulose phosphate
Fique

Only 1
Only 2
Only 3
Only 1 and 2
Only 1 and 3

Answer

Correct Option: A

Question 2

Which of the following forms of rayon consists of cellulose fibre made from bleached wood pulp using dry jet-wet spinning?

Leatheroid
Lyocell
Hypromellose
Ethulose
Nitrocellulose

Answer

Correct Option: B

Question 3

Which of the following is a cellulose nanofibre that is used in composite materials and as a reinforcing additive in paints and coatings?

Microcrystalline cellulose
Viscose rayon
Devore
Curran
Bacterial cellulose

Answer

Correct Option: D

Question 4

Which of the following polymers is used as a texturiser, an anticaking agent, an extender and a bulking agent in food production?

Microcrystalline cellulose
Microbial cellulose
Methyl cellulose
Mercerised pulp
Modal

Answer

Correct Option: A

Question 5

Which of the following is an anionic polysaccharide that is distributed widely in the cell walls of brown algae?

Arabinoxylan
Azoximer bromide
Acrylonitrile butadiene styrene
Dynel
Alginic acid

Answer

Correct Option: E

Question 6

Which of the following pairs of 'polymer : its description' is incorrectly matched?

Cellulose gum : Cellulose derivative with carboxymethyl groups bound to some of the hydroxyl groups of the glucopyranose monomers
Cellodextrin : Indited via the cleavage of cellulose in most anaerobic bacteria by the cellulosome
Cellophane : Created from nitrocellulose and camphor with added dyes and other agents
Cellulose acetate : Acetate ester of cellulose used as a film base in photography
Leatheroid : Cellulose material very similar to vulcanised fibre in physical properties and uses

Answer

Correct Option: C

Question 7

Which of the following is a biodegradable, non-toxic, biocompatible plastic that is produced naturally by bacteria and is a good alternative to many non-biodegradable synthetic polymers?

PHBV
Spandex
PLGA
ETFE
ECTFE

Answer

Correct Option: A

Question 8

Match List I (polymers) with List II (their description).


List I	List II
(i) Heparan sulphate	a. Sulphonated tetrafluoroethylene based fluoropolymer-copolymer
(ii) Chicle	b. Synthetic viscoelastic urethane polymer
(iii) Sorbothane	c. Natural gum traditionally used in making chewing gum
(iv) Nafion	d. Linear polysaccharide found in all animal tissues

(i) - d, (ii) - c, (iii) - b, (iv) - a
(i) - a, (ii) - c, (iii) - b, (iv) - d
(i) - c, (ii) - d, (iii) - b, (iv) - a
(i) - d, (ii) - b, (iii) - c, (iv) - a
(i) - b, (ii) - d, (iii) - a, (iv) - c

Answer

Correct Option: A

Question 9

Which of the following is a conducting polymer that is based on EDOT monomer?

Poly(hydridocarbyne)
Poly(2,6-diphenyl-p-phenylene oxide)
Poly(3,4-ethylenedioxythiophene)
Poly(hexamethylene carbonate)
Poly(methacrylic acid)

Answer

Correct Option: C

Question 10

Which of the following is the hydrophobic synthetic acrylate polymer that has glass-transition temperature of about 10°C?

Poly(methyl acrylate)
Poly(methyl methacrylate)
Poly(N-isopropylacrylamide)
Sodium polyacrylate
Aquamid

Answer

Correct Option: A

Question 11

Which of the following pairs of 'polymer - its example' is incorrectly matched?

Polysaccharide - Aganirsen
Copolymer - Ethylene vinyl alcohol
Natural gum - Konjac
Polyamide - Zytel
Polyurethane - Reticulated foam

Answer

Correct Option: A

Question 12

Which of the following is a plant polysaccharide that is composed of glucose residues that are linked together through β-1,3-linkages?

Alguronic acid
Cellulin granule
Carrageenan
Chitin nanofibril
Callose

Answer

Correct Option: E

Question 13

Match List I (polymers) with List II (types of hybridisation).


List I	List II
(i) Cellulosome	a. Nitrocellulose
(ii) Ethulose	b. Membrane made of cellulose
(iii) Cuprophane	c. Laxative
(iv) Parkesine	d. Multi-enzyme complex

(i) - d, (ii) - c, (iii) - b, (iv) - a
(i) - a, (ii) - c, (iii) - b, (iv) - d
(i) - c, (ii) - d, (iii) - b, (iv) - a
(i) - d, (ii) - b, (iii) - c, (iv) - a
(i) - b, (ii) - d, (iii) - a, (iv) - c

Answer

Correct Option: A

Question 14

Match the following.


Column - I	Column - II
A. Ionomer	1. Polystyrene resin that is based on a copolymer of styrene and chloromethylstyrene
B. Kraton	2. Polymer that comprises repeat units of both electrically neutral repeating units and a fraction of ionised units
C. Merrifield resin	3. High performance elastomer that is used as a synthetic replacement for rubber

A - 1, B - 2, C - 3
A - 3, B - 1, C - 2
A - 2, B - 3, C - 1
A - 2, B - 1, C - 3
A - 3, B - 2, C - 1

Answer

Correct Option: C

Question 15

Match column - I (polymers) with column - II (chemical names).


Column - I	Column - II
A. Bakelite	1. Poly[imino(1,6-dioxohexamethylene) iminotetramethylene
B. Polisept	2. Poly(1-phenylethene)
C. Thermocol	3. Polyhexamethylene guanidine
D. Nylon	4. Polyoxybenzylmethylenglycolanhydride

A - 4, B - 3, C - 2, D - 1
A - 2, B - 1, C - 4, D - 3
A - 2, B - 1, C - 3, D - 4
A - 3, B - 2, C - 4, D - 1
A - 1, B - 2, C - 3, D - 4

Answer

Correct Option: A

Description: GATE
Number of Questions: 15
Created by: Shardul Tyagi
Tags: Polymerization and Polymorphism Food Technology Food Chemistry and Nutrition

Types of Polymers (GATE)

Find more quizzes from top tags