MolSynapsequestion bank
MolSynapse / Question bank / IUPAC Nomenclature and Structural Isomerism / Counting structural isomers
JEE Main levelOne or more correct optionsDifficulty 2 of 3nm196

Which of the following alkanes give exactly three different monochloro derivatives (structural isomers) on free-radical chlorination?

  1. An-Hexane
  2. B2-Methylpentane
  3. C2,2-Dimethylbutane
  4. D3-Methylpentane

Answer: A, C

Count distinct H environments: n-hexane 3, 2-methylpentane 5, 2,2-dimethylbutane 3, 3-methylpentane 4. Exactly three: A, C.
Practice IUPAC Nomenclature and Structural Isomerism More on Counting structural isomers
Previous questionNext question

More questions on Counting structural isomers