set 1 MCQ Questions & Answers Detailed Explanation

Question : 1

Plaster of paris has the formula –

a) CaSO₄ .H₂O

b) CaSO₄ .1½H₂O

c) CaSO₄ .½H₂O

d) CaSO₄ .2H₂O

Question : 2

Goldsmiths uses aqua regia, which is prepared by mixing

a) Nitric acid and Hydrochloric acid

b) Sulphuric acid and Hydrochloric acid

c) Nitric acid and Sulphuric acid

d) Citric acid and Benzoic acid

Question : 3

Human stomach produces acid ‘X’ which helps in digestion of food. Acid ‘X’ is

a) hydrochloric acid

b) acetic acid

c) methanoic acid

d) citric acid

Question : 4

Which of the following is present in maximum amount in acid rain?

a) $HNO_3$

b) $H_2SO_4$

c) HCL

d) $H_2CO_3$

Question : 5

Statement I :
Metal ions are Lewis acids.
Statement II :
Metal ions are electron pair acceptors.

a) Statement I is true but Statement II is false.

b) Both the statements individually true and Statement II is the correct explanation of Statement I.

c) Both the statements are individually true but Statement II is not correct explanation of Statement I.

d) Statement I is false but Statement II is true.

Question : 6

Which one of the following is viscous?

a) Water

b) Honey

c) Alcohol

d) Gasoline