TRB Polytechnic Model Question Paper for Chemistry - 2
Question: 6
To prepare a standard solution of a substance, which of the following is generally used?
(A) A burette
(B) Measuring flask
(C) Small cylinder
(D) None of these
Ans: B
Measuring flask
Question: 7
When sodium acetate is heated with sodalime, it gives
(A) Ethanol
(B) Ethene
(C) Ethane
(D) Methane
Ans: D
Methane
Question: 8
One mole of water has the mass of
(A) 10 g
(B) 18 g
(C) 40 g
(D) 56 g
Ans: B
18 g
Question: 9
The number of carboxylic acid groups present in malonic acid is
(A) 1
(B) 2
(C) 3
(D) 4
Ans: B
2
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