1.

Statement-1 H_(2) molecule is more stable than HeH molecule . Statement -2 . The antibonding electron in the molecular destabilises it .

Answer»

Statement-1 is Ture , Statement-2 is Ture , Statement-2 is a CORRECT explanation for Statement-1.
Statement-1 is Ture , Statement-2 is Ture , Statement-2 is nota correct explanation for Statement-1.
Statement-1 is True , Statement-2 isFalse .
Statement-1 is False, Statement-2 is True.

Solution :Correct explanation . `H_(2)`molecular is more STABLE
than HEH because bond or der of `H_(2) = 1` , that of ` HeH = (1)/(2)`


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