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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3nm257

Which of the following statements about the compound shown are correct?

  1. AIt is a bridged bicyclic compound named bicyclo[3.2.1]octane.
  2. BIts bridgeheads are C1 and C4.
  3. CThe one-carbon bridge is numbered C8.
  4. DIts molecular formula is .

Answer: A, C

The compound is bicyclo[3.2.1]octane (C8H14: two rings give two degrees of unsaturation). Its bridgeheads are C1 and C5 (after the three-carbon bridge C2 to C4), the next bridge is C6, C7 and the one-carbon bridge is C8. The formula C8H16 would need only one ring.
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