• Polymers
Back
0

Polymers

Description: GATE
Number of Questions: 15
Created by:
Tags: GATE PVC and Polyester Synthetic Fibers Vitamins Carbohydrates Synthesis of Antibody and Secretion Addition of Preservatives and Food Additives Proteins Nucleic Acids Evaluation of Effectiveness of Antimicrobial Agents Polymerization Industries
Start the Quiz
Attempted 0/15 Correct 0 Score 0
‹
›

Which of the following pairs represents the natural condensation polymers?

  1. Nylon-6 and proteins

  2. Nylon-6 and cellulose

  3. Proteins and natural rubber

  4. Cellulose and natural rubber

  5. Cellulose and proteins

Show answer
Correct Option: E
Explanation:

Proteins are natural condensation polymers made from amino acid monomers. Cellulose is naturally occurring condensation polymer of glucose. Thus, this option is correct.

Which of the following statements is not correct?

  1. Ziegler-Natta catalyst is used for olefin polymerization.

  2. Perbunan is an example of copolymer.

  3. Azepan-2-one is monomer of nylon-6.

  4. Plexiglass is commercial name of polyethyl acrylate.

  5. Thermocole is a chain growth polymer.

Show answer
Correct Option: D
Explanation:

This option is correct because plexiglass is commercial name of polymethyl methacrylate (PMMA).

Which of the following statements is correct?

  1. Enzymes are nucleic acids.

  2. Repeating units of proteins are peptides.

  3. Saccharides are the most abundant biomolecules on the Earth.

  4. Primary structure of proteins represents linear sequence of amino acids joined together by ester linkage.

  5. Glycogen is a polymer of galactose and glucose.

Show answer
Correct Option: C
Explanation:

This option is correct because saccharides (carbohydrates) are the most abundant biomolecules on the Earth.

Which one of the following pairs is incorrectly matched?

  1. Marasmus – α-Tocopherol

  2. Pellagra - Niacin

  3. Osteomalacia - Cholecalciferol

  4. Xerophthalmia - Retinol

  5. Scurvy - Ascorbic acid

Show answer
Correct Option: A
Explanation:

This option is correct because marasmus is a protein deficiency disease.

Which one of the following sets contains only antibiotic drugs?

  1. Chloramphenicol, Penicillin, Erythromycin, Brompheniramine

  2. Chloramphenicol, Luminal, Erythromycin, Tetracycline

  3. Chloramphenicol, Penicillin, Erythromycin, Tetracycline

  4. Chloramphenicol, Penicillin, Brompheniramine, Luminal

  5. Tetracycline, Penicillin, Morphine, Erythromycin

Show answer
Correct Option: C
Explanation:

This option is correct because Erythromycin, Tetracycline, Chloramphenicol, Penicillin all are antibiotic drugs.

Which one of the following compounds cannot be a catagory of food additives?

  1. Tartrazine

  2. Norethisterone

  3. Benzoate of soda

  4. Acesulfame potassium

  5. Butylated hydroxy toluene

Show answer
Correct Option: B
Explanation:

This option is correct because norethisterone is an antifertility drug.

Which among the following sets represents condensation polymers?

  1. Glyptal, PVC, orlon, bakelite

  2. Glyptal, PVC, orlon, melamine

  3. Glyptal, melamine, orlon, dacron

  4. Glyptal, dacron, melamine, bakelite

  5. Dacron, teflon, bakelite, styrene

Show answer
Correct Option: D
Explanation:

Dacron, melamine, bakelite and glyptal: All are condensation polymers.

Which of the following sets has only non-reducing sugars?

  1. Cellobiose, maltose, lactose

  2. Trehalose, sucrose, maltose

  3. Cellobiose, maltose, sucrose

  4. Cellobiose, maltose, trehalose

  5. Sucorse, lactose, maltose

Show answer
Correct Option: A
Explanation:

Lactose, maltose, cellobiose: All are non-reducing sugars.

Which of the following is a false statement?

  1. Nihydrin test is used for detection of α-amino acids.

  2. Denaturation leads to loss of primary and secondary structure of proteins.

  3. Keratin is an example of fibrous protein.

  4. Albumin is a globular protein.

  5. Isoelectric point is the pH at which no net migration of amino acid occurs under electric field.

Show answer
Correct Option: B
Explanation:

This option is correct because the denatured protein has the same primary structure as the original. Denaturation leads to loss of secondary, tertiary and quarternary structures of proteins.

Identify the incorrectly matched pair.

  1. Promethazine: Antibiotic

  2. Aspirin: Antipyretic

  3. Naproxen: Anti-inflammatory

  4. Valium: Tanquilizer

  5. Diphenylhydramine: Antihistamine

Show answer
Correct Option: A
Explanation:

Promethazine is used as antihistamine drug.

Which among of the following statements regarding DNA is false?

  1. The double helix structure was first discovered by Watson and Crick.

  2. Adenine pairs with uracil.

  3. Cytosine pairs with guanine.

  4. Total amount of purines is equal to total amount of pyrimidines.

  5. Sugar is beta-D-2-deoxyribose.

Show answer
Correct Option: B
Explanation:

This option is correct because in DNA, adenine pairs with thymine. Uracil is not found in DNA.

Which of the following ‘polymer - monomer’ combination is not correct?

  1. Synthetic rubber - Styrene and butadiene

  2. Caoutchouc - isoprene

  3. Bakelite - Phenol and formaldehyde

  4. Amylum - Glucose

  5. Inulin - Arabinose

Show answer
Correct Option: E
Explanation:

Inulin is a polymer of fructose.

Which one of the following sets has aldohexoses?

  1. Galactose, mannose, glucose

  2. Galactose, fructose, glucose

  3. Fructose, mannose, glucose

  4. Mannose, ribulose, galactose

  5. Mannose, ribulose, fructose

Show answer
Correct Option: A
Explanation:

Glucose, galactose, mannose: All the three are aldohexoses.

Which one of the following statements is correct?

  1. Cellophane is a synthetic polymer.

  2. Dacron is a condensation polymer of ethylene glycol and phthalic acid.

  3. Synthetic rubber is condensation polymer of chloroprene.

  4. Caoutchouc has cis configuration at every double bond.

  5. Nylon-66 prepared by addition polymerization.

Show answer
Correct Option: D
Explanation:

In caoutchouc (natural rubber), the double bonds are all in the cis configuration.

Match the following and identify the correct matching ||| |---|---| |Column A|Column B| |a. Invert sugar|i. D-glucose| |b. Animal starch|ii. Maltose| |c. Dextrose|iii. Sucrose| |d. Milk sugar|iv. Glycogen| | |v. Lactose|

  1. a - iii, b - iv, c - i, d - v

  2. a - i, b - iv, c - iii, d - v

  3. a - iii, b - iv, c - i, d - ii

  4. a - i, b - ii, c - iii, d - iv

  5. a - i, b - iii, c - ii, d - iv

Show answer
Correct Option: A
Explanation:

This option is correct because all items of column I is correctly matched with column II.

- Hide questions
ADVERTISEMENT

Find more quizzes from top tags

general knowledge
3615 Quizzes
119858 Questions
 technology
307 Quizzes
36705 Questions
 sports
963 Quizzes
19148 Questions
 history
1187 Quizzes
13475 Questions
 physics
598 Quizzes
13441 Questions
 biology
1160 Quizzes
12174 Questions
 science & technology
551 Quizzes
11015 Questions
 chemistry
490 Quizzes
9892 Questions
 maths
518 Quizzes
9324 Questions
 softskills
0 Quizzes
7131 Questions