Statement : The cathode of electrolytic cell during electrolysis of `NaCl_((aq.))` on additon of little litmus shows a blue colour. Explanation : At cathode : `2H^(+) + 2e rarr H_(2)`. The reaction at cathode give rise to an increase in `pH` ranging in alkaline medium and litmus shows blue colour.A. `S` is correct but `E` is wrongB. `S` is wrong but `E` is correct.C. Both `S` and `E` are correct and `E` is correct explanation of `S`.D. Both `S` and `E` are correct but `E` is not correct explanation of `S`.

Statement : The cathode of electrolytic cell during electrolysis of `N

1.	Statement : The cathode of electrolytic cell during electrolysis of `NaCl_((aq.))` on additon of little litmus shows a blue colour. Explanation : At cathode : `2H^(+) + 2e rarr H_(2)`. The reaction at cathode give rise to an increase in `pH` ranging in alkaline medium and litmus shows blue colour.A. `S` is correct but `E` is wrongB. `S` is wrong but `E` is correct.C. Both `S` and `E` are correct and `E` is correct explanation of `S`.D. Both `S` and `E` are correct but `E` is not correct explanation of `S`.
Answer» Correct Answer - C Explanation is correct reason for statement.

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Define molar conductivity of a solution and explain how molar conductivity changes with change in concentration of a solution for a weak and a strong electrolyte.
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What are elementary reactions ?

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