1.

Assertion : `B_(2)` molecule is paramagnetic. Reason :The highest occupied molecular orbital is of `sigma` type.A. If both assertion and reason are true and the reason is the correct explanation of the assertion.B. If both assertion and reason are true 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.

Answer» Correct Answer - c
`B_(2)` is `sigma 1s^(2) , sigma^(**)1s^(2), sigma2s^(2), sigma^(**)2s^(2) [{:(pi 2 py^(1)),(pi 2 pz^(1)):}]`


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