The gas generated on reacting zinc with dilute sulphuric acid is :

Argon

Helium

Hydrogen

Nitrogen

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This question was previously asked in

UPSC CAPF – 2023

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When a reactive metal like zinc reacts with a dilute acid like sulphuric acid, it displaces hydrogen from the acid. The reaction is: Zn(s) + H₂SO₄(aq) -> ZnSO₄(aq) + H₂(g). This reaction produces zinc sulphate (a salt) and hydrogen gas.

Active metals react with dilute acids to produce hydrogen gas and a salt.

This is a standard method for preparing hydrogen gas in the laboratory. The hydrogen gas can be tested by bringing a burning splint near it; it will burn with a pop sound.

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