Assertion (A) : Cr with electronic configuration [Ar] 3d5 4s1 is more stable than [Ar] 3d4 4s1 . Reason(R ): Half filled orbitals have been found to have extra stability than partially filled orbitals. (a) A and R are correct and R is the correct explanation of A(b) A and R are correct but R is not the correct the explanation of A(c) A is correct but R is wrong(d) A is wrong but R is correct.

Assertion (A) : Cr with electronic configuration [Ar] 3d5 4s1 is more

1.	Assertion (A) : Cr with electronic configuration [Ar] 3d5 4s1 is more stable than [Ar] 3d4 4s1 . Reason(R ): Half filled orbitals have been found to have extra stability than partially filled orbitals. (a) A and R are correct and R is the correct explanation of A(b) A and R are correct but R is not the correct the explanation of A(c) A is correct but R is wrong(d) A is wrong but R is correct.
Answer» (a) A and R are correct and R is the correct explanation of A.