Question

Select the correct statement about this compound.

• A. All three C–N bond length are same.
• B. C1–N and C3–N bonds length are same but shorter than C5–N bond length.
• C. C1–N and C5–N bonds length are same but longer than C3–N bond length.
• D. C1–N and C3–N bonds length are different but both are longer than C5–N bond length.

Answer 1

Answer: (C)

C1–N and C5–N bonds length are same but longer than C3–N bond length.

Answer 2

Due to SIR effect.