Question

a metal when reacts with dilute acid liberating hydrogan gas. how can you confirm that the liberated gas in hydrogen
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Answer 1

Explanation:

When an acid react with a metal it liberates hydrogen gas. To test the presence of H2 gas, bring a burning splinter near the mouth of the test tube where H2 gas is released, the match stick bums with a pop sound.

Answer 2

Answer:

hydrogen burns with pop sound and burns with pale blue flame.