Aqueous solution of which electrolyte produces H2 gas at cathode, when

1.	Aqueous solution of which electrolyte produces H2 gas at cathode, when electrolysed among inert electrodes? (1) NaCl (2) MgCl2 (3) CuCl2 (4) AgCl
Answer» Correct option (1, 2) Explanation: H⁺ has lower discharge potential as compared to Na⁺ and Mg²⁺ Hence, in case of NaCl and MgCl₂ reaction is 2H⁺ + 2e^– →H₂.

Aqueous solution of which electrolyte produces H2 gas at cathode, when electrolysed among inert electrodes? (1) NaCl (2) MgCl2 (3) CuCl2 (4) AgCl

Answer»

Correct option (1, 2)

Explanation:

H⁺ has lower discharge potential as compared to Na⁺ and Mg²⁺

Hence, in case of NaCl and MgCl₂ reaction is 2H⁺ + 2e^– →H₂.

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Aqueous solution of which electrolyte produces H2 gas at cathode, when electrolysed among inert electrodes? (1) NaCl (2) MgCl2 (3) CuCl2 (4) AgCl

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