E⊝ values for couples Cr3+/Cr2+ and Mn3+/Mn2+ are -0.41 and +1.51 volts, respectively. Considering these values, select the correct option from the following statements.

Question

E^{⊝}

values for couples

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

and

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

are

- 0.41

and

+ 1.51

volts, respectively. Considering these values, select the correct option from the following statements.

{Cr}^{2 +}

acts as a reducing agent and

{Mn}^{3 +}

acts as an oxidising agent in their aqueous solutions.

{Cr}^{2 +} (aq)

is more stable than

{Cr}^{3 +} (aq)

{Mn}^{3 +} (aq)

is more stable than

{Mn}^{2 +} (aq)

None of these.

Please login to view the detailed solution steps...