Question

how will you test whether the gas involved in a reaction is hydrogen or carbon dioxide? write test for both.

Answer 1

by lighting up a match stick during the evolution of hydrogen gas we observe that a pop sound is emited

For co2
take a caco3 calcium carbonate solution when we heat it it leads to the evolution of co2 this co2 can be observed when we exhale air in the test tube the lime water will turn milky

Answer 2

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.

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