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Assertion: After the electrolysis of aqu...

Assertion: After the electrolysis of aqueous `CuSO_(4)` solution pH decreases.
Reason: Sulphuric acid is formed.

A

If both Assertion and Reason are true and the Reason is the correct explanation of Assertion.

B

If both Assertion and Reason are true but Reason is not the correct explanation of Assertion

C

If Assertion is true but the Reason is false

D

If both Assertion and Reason are false

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Knowledge Check

  • During the electrolysis of aqueous solution of sodium sulphate, on cathode we get

    A
    Na
    B
    SO_2
    C
    SO_3
    D
    H_2

  • The solution in the electrolytic cell after the electrolysis of aqueous solution of NaCl is rich in

    A
    HCl
    B
    NaCl
    C
    Only water
    D
    NaOH

  • Assertion : Alkali metals are obtained by electrolysis of molten salt and not aqueous solution. Reason : The discharge potential of H^(+) ions is lower than alkali metal cation hence hydrogen is discharged at cathode instead of metal.

    A
    If both (A) and (R) are correct and (R) is the correct explanation of (A).
    B
    If both (A) and (R) are correct, but (R) is not the correct explanation of (A).
    C
    If (A) is correct, but (R) is incorrect.
    D
    If both (A) and (R) are incorrect.