Chemistry PYQ 64 of 152 · Organic Chemistry

The numbers of sigma and pi bonds in benzene are

  1. A3, 3
  2. B3, 6
  3. C12, 3
  4. D12, 6
  5. ENone of the above / More than one of the above

66th BPSC

Show answer and explanation

Correct answer: (c) 12, 3

Explanation

Benzene (C6H6) has 6 C–H bonds and 6 C–C bonds, giving 12 sigma (σ) bonds.

Its three alternating C=C double bonds contribute 3 pi (π) bonds.

Thus benzene contains 12 sigma and 3 pi bonds, totalling 15 covalent bonds.

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