Question

how will you test for the gas which is liberated when HCl react an active metal​

Answer 1

Explanation:

When hydrochloric acid reacts with metals, it produces hydrogen gas. When a match stick lightened placed near hydrogen gas puts out with a pop sound

Answer 2

$\mathbb{ANSWER}$

$<marquee>When hydrochloric acid reacts with metals, it produces hydrogen gas. When a match stick lightened placed near hydrogen gas puts out with a pop sound.</marquee>$