1.

Assertion : The covalency of carbon is four in excited state. Reason : The four half-filled pure orbitals of carbon form same kind of bonds with an atom as those are with hybridised orbitals.

Answer»

If ASSERTION is true but the REASON is FALSE
If assertion is false but reason is true
IF both assertion and reason are true and the reason is the correct explanation of assertion
If both assertion and reason are true but reason is not the correct explanation of assertion

Answer :A


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