Question

preparation of Hydrogen

Answer 1

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◆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. Hydrogen is prepared in the lab by the action of acids on metal's dilute. Sulphuric acid is added to granulated zinc.

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Answer 2

➡In the laboratory, Hydrogen is usually prepared by the reaction of acids in metals such as zinc with Kipp's apparatus. The electrolysis of water is a simple methohd 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.⬅

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