During electrolysis of an aqueous solution of a salt, pH in the space near one of the electrodes is increased, which of the following salt solution was electrolysed?

K C l

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{C u C l}_{2}

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{C u (N O}_{3})_{2}

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{C u S O}_{4}

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Solution

The correct option is A $K C l$
As the cation $(K^{+})$ in $K C l$ has lower electrode potential than $H$ , hydrogen is liberated at cathode.

There is an accumulation of $H^{+}$ at one electrode, resulting in an increase in pH.

Hence, option A is correct.

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Similar questions

During electrolysis of aqueous solution of a salt pH in the space near one of the electrodes is increased. Which of the following salt solution was electrolysed?

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During electrolysis of an aqueous solution of a salt, pH in the space near one of the electrodes is increased, which of the following salt solution was electrolysed?

The correct option is A KClAs the cation (K+) in KCl has lower electrode potential than H, hydrogen is liberated at cathode.There is an accumulation of H+ at one electrode, resulting in an increase in pH.Hence, option A is correct.

The correct option is A $K C l$
As the cation $(K^{+})$ in $K C l$ has lower electrode potential than $H$ , hydrogen is liberated at cathode.

There is an accumulation of $H^{+}$ at one electrode, resulting in an increase in pH.

Hence, option A is correct.