Question

hi......

Hello......

Bonjour........

Answer it..........

Get 50 point..........

==============

How hydrogen is prepared?

==============

Answer 1

Preparation of Hydrogen

Hydrogen gas is prepared in the laboratory by the action of dilute hydrochloric acid or dilute sulphuric acid on granulated zinc.

Zn + 2HCL → ZnCL₂ + H₂↑
Zn + H2SO₄ → ZnSO₄ + H₂↑

Granulated zinc is commercial zinc obtained from molten zinc. It contains impurities like copper which have a slight catalytic effect on the reaction and speeds up the reaction.

Answer 2

In the laboratory, H2 is usually prepared by the reaction of acids on metals such as zinc with Kipp's apparatus. The electrolysis of water is a simple method of producing hydrogen. A low voltage current is run through the water, and gaseous oxygen forms at the anode while gaseous hydrogen forms at the cathode.