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
Ans: A
Copper ferrocyonide
Question: 2
Epoxy resins are used as
(A) Moth repellants
(B) Detergents
(C) Adhesives
(D) Insecticides
Ans: C
Adhesives
Question: 3
Which of the following is not a compound?
(A) Slaked lime
(B) Black lead
(C) Silica
(D) Red lead
Ans: B
Black lead
Question: 4
Oxides of metals are generally
(A) Acidic
(B) Neutral
(C) Amphoteric
(D) Basic
Ans: 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
Ans: D
a seed plant
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