Explain the procedure of the experiment in which hydrogen gas is liberated and how do you test the presence of their gas
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Hydrogen gas is liberated when an acid reacts with a metal.
Zinc reacts with dilute sulphuric acid to form zinc sulphate along with evolution of hydrogen gas.
Test for hydrogen gas - Burning splinter test:
Hydrogen ignites with a 'pop' sound when placed near a glowing splint.
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