Question

how will you test whether the gas involved in a reaction is hydrogen​

Answer 1

Answer:

Pop test is a common test which is used to check whether the gas evolved from the particular reaction is hydrogen. When any paper is burnt near the hydrogen gas, it produces pop sound which is quite audible. Moreover, it gives pungent and irritating smell when evolved.

Answer 2

Answer:

zinc + hydrogen chloride gives zinc chloride+ hydrogen where hydrogen goes in has form