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0 votes
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in Chemistry by (83.9k points)

When the same amount of zinc is treated separately with , excess of sulphuric acid and excess of sodium hydroxide, the ratio of volumes of hydrogen evolved is

(a) 1 : 1

(b) 1 : 2

(c) 2 : 1

(d) 9 : 4

1 Answer

+1 vote
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Best answer

Correct option (a) 1 : 1

Explanation:

Zinc reacts with excess of sulphuric acid as follows

Zinc reacts with excess of NaOH as

Thus. the ratio of volumes of hydrogen evolved = 1/1 = 1 : 1

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