How will you find that the evolving gas is hydrogen ?

1.	How will you find that the evolving gas is hydrogen ?
Answer» Thanks Pop test is a common test which is used to check whether the gas evolved from the particular reaction is hydrogen.\xa0When any paper is burnt near the hydrogen gas, it produces pop sound which is quite audible.\xa0Moreover, it gives pungent and irritating smell when evolved. When we bring a matchstick it will produce pop sound

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