Chemistry Gk Questions and Answers 2020-2021 - 3

Question: 11

Which one among the following is not a mixture?

(A) Steel

(B) Glass

(C) Graphite

(D) Brass

Question: 12

A single type of atom is found in

(A) Natural elements

(B) Mixture of minerals

(C) Compounds of minerals

(D) None of the above

Question: 13

Which one of the following is to be found in nail polish remover?

(A) Acetic acid

(B) Acetone

(C) Benzene

(D) Petroleum ether

Question: 14

The acid present in stomach juice is

(A) Lactic acid

(B) Hydrochloric acid

(C) Citric acid

(D) Tartaric acid

Question: 15

Which of the following is called philosopher’s wool?

(A) Zinc chloride

(B) Zinc nitrate

(C) Zinc bromide

(D) Zinc oxide