JEE Mains · Chemistry · STD 11 - 4. Chemical bonding and molecular structure
In which one of the following pairs the central atoms exhibit \(\mathrm{sp}^2\) hybridization ?
- A \(\mathrm{BF}_3\) and \(\mathrm{NO}_2^{-}\)
- B \(\mathrm{NH}_2^{-}\)and \(\mathrm{H}_2 \mathrm{O}\)
- C \(\mathrm{H}_2 \mathrm{O}\) and \(\mathrm{NO}_2\)
- D \(\mathrm{NH}_2^{-}\)and \(\mathrm{BF}_3\)
Answer & Solution
Correct Answer
(A) \(\mathrm{BF}_3\) and \(\mathrm{NO}_2^{-}\)
Step-by-step Solution
Detailed explanation
\(\mathrm{BF}_3 \rightarrow \mathrm{sp}^2\) \(\mathrm{NO}_2^{-} \rightarrow \mathrm{sp}^2\) \(\mathrm{H}_2 \mathrm{O} \rightarrow \mathrm{sp}^3\) \(\mathrm{NO}_2 \rightarrow \mathrm{sp}^2\) \(\mathrm{NH}_2^{-} \rightarrow \mathrm{sp}^3\)
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