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Q.
The compound in which carbon uses only its $sp^{3}$ hybrid orbitals for bond formation is
NTA AbhyasNTA Abhyas 2022
Solution:
All bonds are $\text{σ}$ - bonds hence, carbon uses only its $\text{s}\text{p}^{3}$ -hybrid orbitals.
In all other compounds there is one $\text{C}=\text{O}$ double bond, therefore, this carbon is $\text{s}\text{p}^{2}$ - hybridized