When zinc metal is treated with a dilute solution of a strong acid, a gas is evolved

When zinc metal is treated with a dilute solution of a strong acid, a gas is evolved, which is utilised in the hydrogenation of oil. Name the gas evolved. Write the chemical equation of the reaction and also write a test to detect the gas formed.
Answer:
When zinc reacts with dilute solution of strong acid, it forms salt and hydrogen gas is evolved.
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When a burning splinter is brought near the mouth of the test tube, the gas burns with a pop sound.