Consider the isomers of hydrocarbon with molecular formula . These isomers do not decolourise solution. These isomers are subjected to chlorination with chlorine in presence of light to give monochloro compounds. The total number of monochloro compounds (structural isomers only) formed is ________.
← JEE Main 2026 · 2 Apr · Shift 1
ChemistryInteger+4 / -1Question 72 of 75
JEE Main 2026 · 2 Apr · Shift 1, Chemistry question 72
Answer and worked solution
Official answer: 14
No reaction with , so the isomers are cycloalkanes. Count the monochloro structural isomers of each:
| Cycloalkane | Distinct H types | Products |
|---|---|---|
| cyclopentane | 1 | 1 |
| methylcyclobutane | CH₃, C1, C2, C3 | 4 |
| 1,1-dimethylcyclopropane | CH₃, ring CH₂ | 2 |
| 1,2-dimethylcyclopropane | CH₃, ring CH, ring CH₂ | 3 |
| ethylcyclopropane | CH₃, CH₂, ring C1, ring C2 | 4 |
Total .
Answer: 14