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NEET levelSingle correct optionDifficulty 1 of 3g1237

If the ring of the compound shown is assumed planar and square, it is

  1. Aaromatic
  2. Bnon-aromatic because it has an sp3 carbon
  3. Cantiaromatic
  4. Daromatic because it has alternate double bonds

Answer: C

The compound shown is cyclobutadiene. It has 4 pi electrons, which is 4n (n = 1), so a planar cyclic conjugated ring is antiaromatic.
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