Question

which metal is used to prepare hydrogen in laboratory​

Answer 1

Answer:

Hyrochloric acid in the presence of catalyst and heated at 1000°C

Then hydrogen is prepared in the lab

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Answer 2

Answer:

Zinc is used to prepare hydrogen in laboratory .

Reason :-

Granulated zinc reacts with most acids to release Hydrogen gas.

Granulated zinc gives more surface area for the acid to act, so hydrogen is formed faster.

Also, granulated zinc has copper as an impurity, which catalyses the reaction.