TRB Chemistry Question Bank - 1

Question: 1

Which inorganic precipitate acts as semipermeable membrane?

(A) Copper ferrocyonide

(B) Nickel phosphate

(C) Barium oxalate

(D) Calcium sulphate

Question: 2

Epoxy resins are used as

(A) Moth repellants

(B) Detergents

(C) Adhesives

(D) Insecticides

Question: 3

Which of the following is not a compound?

(A) Slaked lime

(B) Black lead

(C) Silica

(D) Red lead

Question: 4

Oxides of metals are generally

(A) Acidic

(B) Neutral

(C) Amphoteric

(D) Basic

Question: 5

Pyrethrin used in mosquito coil is obtain from

(A) a fungus

(B) a bacterium

(C) an insect

(D) a seed plant