Assertion . B_(2) moleculei is diamagnetic . Reason . The highest occupied molecular orbital is of sigma-type .

Assertion . B_(2) moleculei is diamagnetic . Reason . The highest occ

1.	Assertion . B_(2) moleculei is diamagnetic . Reason . The highest occupied molecular orbital is of sigma-type .
Answer» If both assertion and reason are CORRECT, and reason is the correct explanation of the assertion. If both assertion and reason are correct , but reason is not the correct explanation of the assertion. If assertion is correct, but reason is incorrect . If both assertion and reason are incorrect. Solution :Coreect A. `B_(2)` MOLECULE is PARAMAGNETIC (M.O.E.C of`B_(2) = KK sigma_(2S)^(2)sigma_(2s)^(**2) pi_(2p_(x))^(1) pi_(2p_(y))^(1))`. Correct R . The highest occupied M.O. is `pi` and not `SIGMA`- type .