Question

In the given structure, number of \( sp \) and \( sp^2 \) hybridized carbon atoms present respectively are:

• A. \( 3 \) and \( 5 \)
• B. \( 4 \) and \( 5 \)
• C. \( 3 \) and \( 6 \)
• D. \( 4 \) and \( 6 \)

Hint:

Carbon atoms involved in triple bonds are \( sp \)-hybridized, while those involved in double bonds (or with a lone pair) are \( sp^2 \)-hybridized.

Answer 1

The Correct Option is A

- The structure includes \( sp \) and \( sp^2 \) hybridized carbon atoms.
- Carbon atoms in triple bonds, such as the C≡N bond, are \( sp \)-hybridized.
- Carbon atoms in double bonds, including C=C and C=O groups, are \( sp^2 \)-hybridized.
- Consequently, there are 3 \( sp \)-hybridized atoms and 5 \( sp^2 \)-hybridized atoms.

Final Answer: Option (1).