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Assertion : Carbon atom is tetravalent t...

Assertion : Carbon atom is tetravalent though it has two unpaired electrons.
Reason : Carbon has unique ability to form `p pi - p pi` multiple bonds with itself like C = C, `C -= C`

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The correct Answer is:
B
In carbon, only s and p-orbitals are available for fonding and therefore, it can accommodate only four pairs of electrons around it. This would limit the maximum covalence to four in carbon.
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