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The passage of current through a solution of certain electroylte results in the formation of hydrogen at anode the soltuion is

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The passage of current through a solution of certain electroylte results in the formation of hydrogen at anode the soltuion is
A. Aqueous HCl
B. Fused `CaH_(2)`
C. sulphuric acid in water
D. Aqueous `K_(2)SO_(4)`
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Correct Answer - B
In a CaH2, Hydrogen has the Oxidation state of -1. Hence hydrogen gas is liberated at anode.
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