Chemistry, asked by bhagattarun797, 2 months ago

the lab preparation of hydrogen how is the gas collected and why

Answers

Answered by shivani5057

3

Hydrogen gas is prepared in laboratory by the action of dilute HCl upon granulated zinc. ... The hydrogen gas thus formed is collected in a gas jar through delivery tube by the downward displacement of water. Purification: The hydrogen gas thus obtained may contain different impurities like H2S, NO2, CO2, moisture etc.

Answered by GracePaul

2

Answer:

Downward displacement of Water

Explanation:

Hydrogen is collected by downward displacement of water as it is less denser than water. Hence it comes out at the surface of water . It is insoluble in water so it does not dissolve in water.

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