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Single Answer MCQ
Q-00019053

What gas is released when an acid reacts with a metal?

1

Oxygen

2

Hydrogen

3

Carbon dioxide

4

Nitrogen

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Prof. Rajesh Iyer

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Science educator with 10+ years of experience in CBSE Physics, general Science, and computer science curriculum review.

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Answer and Solution

Answer

B. Hydrogen

Solution:

Hydrogen gas is released when acids react with metals, evidenced by effervescence and can ignite with a flame. The other gases do not fit this reaction.

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