Assertion . `H_(2)` molecule is more stable than HeH molecule. Reason . The antibonding elelctron in the molecule destabilises is .A. If both assertion and reason are correct, and reason is the correct explanation of the assertion.B. If both assertion and reason are correct , but reason is not the correct explanation of the assertion.C. If assertion is correct, but reason is incorrect .D. If both assertion and reason are incorrect.

Assertion . `H_(2)` molecule is more stable than HeH molecule. Reason

1.	Assertion . `H_(2)` molecule is more stable than HeH molecule. Reason . The antibonding elelctron in the molecule destabilises is .A. If both assertion and reason are correct, and reason is the correct explanation of the assertion.B. If both assertion and reason are correct , but reason is not the correct explanation of the assertion.C. If assertion is correct, but reason is incorrect .D. If both assertion and reason are incorrect.
Answer» Correct Answer - b Correct explanation . `H_(2)` molecular is more stable than Heh because bond order of `H_(2)` = 1 and that of Heh ` = (1)/(2)` (Higher the bond order , more is the stability).

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