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Assertion: H(2) molecule is more stable...

Assertion: `H_(2)` molecule is more stable than HEH molecule.
Reason: the anti-bonding electron in the molecule destabilise it.

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 the reason is not the correct explanation of the assertion

C

If assertion is true but reason is false

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
B
`H_(2)` molecule is more stable than `HEH` because bond order `H_(2)=1`
ad that of `HeH=(1)/(2)`
(Higher the bond order, more is the stability).
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