Question

2. we should use impure zinc-during the laboratory
Preparation of hydrogen gas. why?​

Answer 1

Answer:

Pure zinc is not used in laboratory preparation of hydrogen because it is non-porous in nature. As a result reaction would occur very slowly. Hence impurities like copper is added to the zinc which increases the speed of the reaction.

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Answer 2

Answer:

HeRe iS uR AnsWeR

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Pure zinc is not used in laboratory preparation of hydrogen because it is non porous in nature.Hence impurities like copper is added to the zinc which increase the speed of the rection.

Explanation:

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