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Assertion (A): Pink coloured solution of...

Assertion `(A)`: Pink coloured solution of potassium permanganate turns green on passing `O_3` through it.
Reason `(R)` :`K_2MnO_4` is oxidised by `O_3` to `KMnO_4`.

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 (A) is incorrect, but (R) is correct.

Text Solution

Verified by Experts

The correct Answer is:
D
`KMnO_(4)` is a stronger oxidising agent as compared to `O_(3)` and hence is not oxidised by `O_(3)`.
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Knowledge Check

  • Assertion : In titrations involving potassium permanganate no indicator is used. Reason : MnO_(4)^(-) acts as the self-indicator.

    A
    If both assertion and reason are true and reason is the correct explanation of assertion.
    B
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    C
    If assertion is true but reason is false.
    D
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