TRB Chemistry Question Bank - 4

Question: 16

Which of the following metals remains in liquid form under normal conditions?

(A) Mercury

(B) Zinc

(C) Uranium

(D) Radium

Question: 17

Mesosphere is the next layer ___ the thermosphere.

(A) At the side

(B) Behind

(C) Below

(D) Above

Question: 18

Which of the following is a liquid at room temperature?

(A) Iodine

(B) Bromine

(C) Duralumin

(D) Invar

Question: 19

The enzymes are killed

(A) at a very high temperature

(B) during chemical reaction

(C) at low temperature

(D) under atmospheric pressure

Question: 20

Deficiency of iron in our body leads to

(A) Rickets

(B) Scurvy

(C) Anaemia

(D) Glaucoma