NEET UG CHEMISTRY MCQ: ELECTRO CHEMISTRY

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Analyzing +4 | -1

Assertion (A) At the end of electrolysis using platinum electrodes, an aqueous solution of

\mathrm{CuSO}_4

turns colourless.

Reason (R) During the electrolysis

\mathrm{CuSO}_4

changes to

\mathrm{Cu}(\mathrm{OH})_2

during electrolysis.

View answer and explanation

Correct option: C

Assertion is true but Reason is false.

Option C is correct because the assertion is true (the solution turns colorless), but the reason is false (CuSO4 does not change to Cu(OH)2). Copper is deposited at the cathode, and oxygen is evolved at the anode, leading to the formation of sulfuric acid.

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