PG TRB Chemistry Online Test - 1

Question: 1

The Latin name of Potassium is

(A) Kalium

(B) Ferrum

(C) Cuprum

(D) Natrium

Question: 2

Which instrument is used to measure relative humidity in the atmosphere?

(A) Barometer

(B) Hydrometer

(C) Speedometer

(D) Hygrometer

Question: 3

Which of the following glass has a very high refractive index

(A) Pyrex glass

(B) Safety glass

(C) Flint glass

(D) Hard glass

Question: 4

A pungent smell often present near the urinals is due to

(A) Ammonia

(B) Chlorine

(C) Urea

(D) Sulphur di-oxide

Question: 5

“Acid rain ” is caused due to air-pollution by

(A) Nitrous oxide and sulphur dioxide

(B) Methane

(C) Carbon monoxide

(D) Carbon dioxide