Question

c) Write the chemical equation and collection of preparation of
hydrogen gas.​

Answer 1

Answer:

In the laboratory, dihydrogen gas is prepared by taking zinc granules in a 500 ml flask.

To this, dilute HCl or dilute sulphuric acid is added through a thistle funnel.

Dihydrogen gas is released and the gas is collected by the downward displacement of water because it is a gas lighter than water

Reaction:

Zn

(s)

+2HCl

(aq)

→ZnCl

2(aq)

+H

2(g)

Zn

(s)

+H

2

SO

4(aq)

→ZnSO

4(aq)

+H

2(g)

.

Explanation:

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Answer 2

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