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Assertion: E^(ɵ) for (Mn^(3+))/(Mn^(2+))...

Assertion: `E^(ɵ)` for `(Mn^(3+))/(Mn^(2+))` is more positive than for `(Cr^(3+))/(Cr^(2+))`.
Reason: The third ionisation energy of Mn is larger than that of Cr.

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:
a
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Knowledge Check

  • Assertion: E^(@) for Mn^(3+)//Mn^(2+) is more positive than Cr^(3+)//Cr^(2+) Reason: The third ionisation energy of Mn is larger than that of Cr .

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    Assertion and reason both are correct statements and reason is correct explanation for assertion.
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    B
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    C
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    Give reasons: E^0 value for Mn^(3+)//Mn^(2+) couple is much more positive than that for Fe^(3+)//Fe(2+) .

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