How to make a hydrogen gas in a lab.
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Hydrogen is prepared in the laboratory by the action of the dilute hydrochloric acid or dilute sulphuric acid on granulated zinc.
Use of Granulated Zinc.
Reaction:
Collection of Gas: Hydrogen gas is collected by downward displacement of water.
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one of the way to make hydrogen gas in the laboratory is to place a metal such as zinc in hydrochloric acid (see the figure). The hydrochloric acid reacts with the metal to produce hydrogen gas, which is then collected over water.
Explanation:
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