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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