Question

preparation of Hydrogen

Answer 1

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PREPARATION OF HYDROGEN GAS IN LABORATORY

Before collecting hydrogen gas great care must be taken to ensure that all the air has been displaced from the apparatus since a mixture of hydrogen with air is highly explosive.
PREPARATION OF HYDROGEN GAS IN LABORATORY

PREPARATION OF HYDROGEN GAS IN LABORATORY

Hydrogen is prepared in the lab by the action of acids on metal’s dilute.
Zn+H2SO4——> ZnSO4+H2
Zn+ 2HCl—–>ZnCl2+H2
Sulphuric acid is added to granulated zinc. Zinc sulphate or zinc chloride is formed in solution and the hydrogen that is evolved is collected over water in a trough.

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Answer 2

Answer:

refer to the attachment

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