Which of the following pairs of molecules are NOT structural isomers?
(A) and
(B) and
(C) and
(D) and

Question

Which of the following pairs of molecules are NOT structural isomers? (A) and (B) and (C) and (D) and

TestHub · Accepted Answer

(A) n-pentane and 2-methylbutane are both C₅H₁₂ ✓ isomers. (B) propanone and cyclopropanol are both C₃H₆O ✓ isomers. (D) methyl propanoate and but-2-ene-1,4-diol are both C₄H₈O₂ ✓ isomers. In (C), methylcyclobutene is C₅H₈ while but-2-yne is C₄H₆ - different molecular formulas, so they are NOT structural isomers.

Chemistry - STRUCTURAL ISOMERISM Question with Solution | TestHub

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