Standard Books Chemistry Electronic Configurations Assertion Reason Question with Solution

Assertion : Co(IV) is known but Ni(IV) is not. Reason : Ni(IV) has d⁴ electronic configuration.

A

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

B

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

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Correct Answer

Option C

Detailed Explanation

Co(IV) is known due to its stable electronic configuration, whereas Ni(IV) is not stable because it does not achieve a stable electronic configuration.

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