Question

laboratory Preparation of Hydrogen

Answer 1

Preparation of Hydrogen 

Hydrogen gas is prepared in the laboratory by the action of dilute hydrochloric acid or dilute sulphuric acid on granulated zinc.

Zn + 2HCL → ZnCL₂ + H₂↑
Zn + H2SO₄ → ZnSO₄ + H₂↑

Granulated zinc is commercial zinc obtained from molten zinc. It contains impurities like copper which have a slight catalytic effect on the reaction and speeds up the reaction.

Answer 2

HIII.....


HERE IS YOUR ANSWER:--------

HYDROGEN GAS IS PREPARED IN THE LABORATORY BY THE DILUTE HCL OR DILUTE SULPHURIC ACID ON GRANULATED ZINC.


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