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Match List - I with List - II. array l List - I & List - II Pair of Compounds & Type of Isomers A. 2-Methylpropene and but-1-ene & I. Stereoisomers B. Cis-but-2-ene and trans-but-2-ene & II. Position isomers C. 2-Butanol and diethyl ether & III. Chain isomers D. But-1-ene and but-2-ene & IV. Functional group isomers array Choose the correct answer from the options given below :

Options

  1. AA-II, B-I, C-IV, D-III
  2. BA-III, B-I, C-II, D-IV
  3. CA-I, B-IV, C-III, D-II
  4. DA-III, B-I, C-IV, D-II

Correct answer

D. A-III, B-I, C-IV, D-II

Step-by-step solution

Analyzing the pairs of compounds in List-I: A. 2-Methylpropene ( CH₃-C(CH₃)=CH₂ ) and but-1-ene ( CH₃-CH₂-CH=CH₂ ) have the same molecular formula C₄H₈ but different carbon skeletons (branched vs straight chain). Thus, they are chain isomers. (A-III) B. Cis-but-2-ene and trans-but-2-ene are geometrical isomers, which fall under the category of stereoisomers. (B-I) C. 2-Butanol ( C₄H₉OH ) and diethyl ether ( C₂H₅-O-C₂H₅ ) have the same molecular formula C₄H₁₀O but different functional groups (alcohol vs ether). Thus

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