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Assertion : The free gases Cr atom has s...

Assertion : The free gases `Cr` atom has six unpaired electrons.
Half-filled `'s'` orbital has greater stability.

A

If both assetion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are ture but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
C
`24Cr rarr [Ar] 3d^(4) 4 s^(2)`
`Cr rarr [Ar] 3 d^(5) 4 s^(1)`
Fully-filled s-orbital has greater stability.
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