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JEE Advanced levelOne or more correct optionsDifficulty 3 of 3nm258

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

  1. AThe parent hydrocarbon is bicyclo[2.2.1]heptane.
  2. BThe hydroxyl group is cited as the prefix hydroxy.
  3. CThe carbon carrying the OH is C2 and it also carries the methyl group.
  4. DThe one-carbon bridge C7 carries no substituent.

Answer: A, C, D

The compound is 2-methylbicyclo[2.2.1]heptan-2-ol. Alcohol is the principal group, so it is expressed as the suffix -ol and its carbon gets the lowest possible locant, 2 (next to bridgehead C1). The methyl is on the same carbon, and C7 is an unsubstituted CH2.
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