NEET UG CHEMISTRY MCQ: ELECTRO CHEMISTRY

1 Hard

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Analyzing +4 | -1

Assertion :

E^{\circ}

for

{Mn}^{3+} / {Mn}^{2+}

is more positive than

{Cr}^3 / {Cr}^{2+}

.

Reason : The third ionization energy of

{Mn}

is larger than that of

{Cr}

View answer and explanation

Correct option: A

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

Option A (If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.) is correct because the higher third ionization energy of Mn makes Mn2+ more stable, leading to a more positive reduction potential for Mn3+/Mn2+.

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