TRB Model Question Papers with Answer in Chemistry - 1

Question: 1

Freon is used as

(A) Refrigerant

(B) Oxidant

(C) Catalyst

(D) Both b and c

Ans: A

Refrigerant

Question: 2

Which of the following is an element?

(A) Ruby

(B) Diamond

(C) Emerald

(D) Sapphire

Ans: B

Diamond

Question: 3

Which of the following is not a bleaching agent?

(A) Carbon dioxide

(B) Sulphur dioxide

(C) Chlorine

(D) Sodium hypochlorite

Ans: A

Carbon dioxide

Question: 4

Tannic acid is present in

(A) Lemon

(B) Sour milk

(C) Grapes

(D) Tea

Ans: D

Tea

Question: 5

Lactic acid is present in

(A) Sour milk

(B) Lemon juice

(C) Vinegar

(D) Grapes

Ans: A

Sour milk

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