CBSE Class 10 Science 2023 Outside Delhi Set 3

Question : 1

Total: 12

There are four solutions A, B, C and D with pH values as follows: Which solution(s) would liberate hydrogen gas with zinc?

Solution	A	B	C	D
pH	2.0	7.0	8.0	12.0

Solution:

Zinc quickly reacts with acid to form hydrogen bubbles and the solution A having the pH of 2.0 is highly acidic in nature.

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