Question

Carbon atom is tetravalent though it has two unpaired electrons. Carbon has unique ability to form $p\pi-p\pi$ multiple bonds with itself like $C=C, C\equiv C$.

• A. If both assertion and reason are true and reason is the correct explanation of assertion
• B. If both assertion and reason are true but reason is not the correct explanation of assertion
• C. If assertion is true but reason is false
• D. If both assertion and reason are false

Answer 1

Answer: (B)

If both assertion and reason are true but reason is not the correct explanation of assertion

Answer 2

In carbon, only $s$ and $p$-orbitals are available for bonding and therefore, it can accommodate only four pairs of electrons around it. This would limit the maximum covalence to four in carbon.