How many electrons are there in a benzene molecule?

Answer and explanation

Correct answer: A. 6

  1. Step 1: Benzene () consists of a planar hexagonal ring of -hybridised carbon atoms.
  2. Step 2: Each carbon atom contributes unhybridised -orbital electron to the delocalised conjugated ring system.
  3. Step 3: Summing across the ring yields delocalised electrons satisfying Hückel's aromaticity rule ().
Answer
6.

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