Question

Which of the following statement is true about the structure of nitro group in nitro alkanes?

• A. Nitro group is a resonance hybrid of two structures.
• B. For both N-O bonds, the bond length is same.
• C. Both of the above.
• D. Nitro group does not show resonance.

Answer 1

Answer: (C)

Both of the above.

Both A and B statements are true.

Nitro group is a resonance hybrid of two structures.

For both N-O bonds, the bond length is the same. This shows that both N-O bonds are identical. Both N-O bonds have partial double bond character.

Hence the correct option is C.