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28 May, 19:49

Copper sulphate is used during

laboratory preparation of hydrogen

gas. Give reason.

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Answers (1)
  1. 28 May, 22:11
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    Answer:Hydrogen gas is prepared in laboratory by the action of dilute HCl upon granulated zinc. Note: This is a redox reaction since Zn is oxidized and H + ions is reduced here. Procedure: ... Some crystals of copper sulphate are added to increase the rate of reaction.
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