Question

Four statement of Cr and Mn are given below.
(P). `Cr^(2+)` and `Mn^(3+)` have the same electronic configuration.
(Q). `Cr^(2+)` is a reducing agent while `Mn^(3+)` in an oxidizing agent.
(S). Both Cr and Mn are oxidizing agent.
The correct statement are:
A. P,R,S
B. P,Q
C. P,Q,S
D. P,S

Answer 1

Correct Answer - B
(a). `Cr^(2+)=3d^(4)`
`Mn^(3+)=3d^(4)`
(b). `Cr^(2+)toCr^(3+)+e^(-)`
(b). `Cr^(2+)toCr^(3+)+e^(-)`
`Mn^(3+)+e^(-)toMn^(2+)`