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MHT CET Chemistry General Organic Chemistry 2026 MHT CET 2026 (19 April Shift 2)

MHT CET Chemistry Question (2026) — Solution

Question

Find the number of structural isomers possible for hexane ?

Options

  1. A. Two
  2. B. Four
  3. C. Three
  4. D. Five

Answer

D. Five

Step-by-step solution

The molecular formula of hexane is C_6H_ 14 . The possible structural isomers are: 1. CH_3-CH_2-CH_2-CH_2-CH_2-CH_3 (n-hexane) 2. CH_3-CH(CH_3)-CH_2-CH_2-CH_3 (2-methylpentane) 3. CH_3-CH_2-CH(CH_3)-CH_2-CH_3 (3-methylpentane) 4. CH_3-C(CH_3)_2-CH_2-CH_3 (2,2-dimethylbutane) 5. CH_3-CH(CH_3)-CH(CH_3)-CH_3 (2,3-dimethylbutane) Thus, there are five structural isomers possible for hexane. Answer: Five

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