Question:
The number of normal modes of vibration in benzene (\(C_6H_6\)), a planar molecule with 12 atoms, is:
The number of normal modes of vibration in benzene (\(C_6H_6\)), a planar molecule with 12 atoms, is:
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Use 3N - 6 for a nonlinear molecule with N atoms.
Updated On: Jul 3, 2026
- 6
- 30
- 12
- 36
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The Correct Option is B
Solution and Explanation
Step 1: Nonlinear molecule: 3N-6 vibrational modes.
Step 2: N=12 (6C+6H).
Step 3: 3(12)-6=30.
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