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(A) : The electronic configuration of Cr...

(A) : The electronic configuration of Cr is `[Ar]3d^(5)4s^(1)` but not `[Ar]3d^(4)4s^(2)`
(R) : Lowering energy with configuration `[Ar]3d^(5) 4s^(1)` is more than that with configuration `[Ar]3d^(4)4s^(2)`

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

(A) is false but (R) is true

Text Solution

Verified by Experts

The correct Answer is:
A
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