Question

in the laboratory preparation of hydrogen from zinc and dilute hydrochloric acid a solution which absorbs the impurities of hydrogen sulphide
1. AgNO. solution
³
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Answer 1

Answer:

Zinc reacts with dilute HCl to give a metallic zinc chloride with the evolution of hydrogen gas.

Laboratory Preparation of Hydrogen Gas

Step 1: Take a few grams of zinc granules and place them in a 500 mL flask.

Step 2: With the help of a thistle funnel, add dilute hydrochloric acid to the zinc granules. ...

Step 3: Hydrogen gas will be automatically collected with the help of a delivery tube via the downward displacement of water.