Chemistry - Questions and Answers, General Study (GK)

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371.

Which one of the following is the natural polymer?

(a)Nylon

(b)Teflon

(c)PVC

(d)Cellulose

Comment

Answer is: DNA

372.

Which one of the following enzymes is used to digest gelatine in the process of recovering silver from the photographic film?

(a)Amylase

(b)Pepsin

(c)Lypase

(d)None of these

Comment

Answer is: BNA

373.

Which one of the following proteins has structural as well as enzymatic property?

(a)Collagen

(b)Dynein

(c)Nexin

(d)Actin

Comment

Answer is: DNA

374.

Which one of the following have called helical structure?

(a)Proteins

(b)Lipids

(c)Carbohydrates

(d)Vitamins

Comment

Answer is: ANA

375.

Lactose on hydrolysis gives

(a)Glucose

(b)Fructose

(c)Fructose + glucose

(d)Glucose + galactose

Comment

Answer is: DNA

376.

A metal which can form a complex with insulin is

(a)Copper

(b)Iron

(c)Zinc

(d)Cobalt

Comment

Answer is: CNA

377.

Chemical name of vitamin A is

(a)Thiamine

(b)Axerophthol (retinol)

(c)Ascorbic acid

(d)Nicotinamide

Comment

Answer is: BNA

378.

The number of amino acids which form protein in nature are about

(a)6

(b)10

(d)20

Comment

Answer is: ANA

379.

Which of the following is correct?
Setting of plaster of paris is

(a)Dehydration

(b)Oxidation with atmospheric oxygen

(c)Hydration leading to another hydrate

(d)Combination with atmospheric carbon dioxide

Comment

Answer is: CNA

380.

Amphetamine used as

(a)Anaesthetic

(b)Antidepressant

(c)Antimalarial

(d)Analgesic

Comment

Answer is: BNA

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Chemistry - Questions and AnswersPage 38

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