An unsaturated hydrocarbon 'A' adds two molecules of H_2 and on reductive ozonolysis gives butane-1,4-dial, ethanal and propanone. Give the IUPAC name of A.

MHT CET Chemistry question

An unsaturated hydrocarbon 'A' adds two molecules of and on reductive ozonolysis gives butane-1,4-dial, ethanal and propanone. Give the IUPAC name of A.

(A)3-methylocta-2,6-diene
(B)2-methylocta-2-5-diene
(C)2-methylocta-2-6-dieneCorrect
(D)2-methylocta-3-5-diene

Answer: (C)

Solution

Joining the carbonyl carbons of the fragments gives (CH_3)_2C{=}CH{-}CH_2CH_2{-}CH{=}CH{-}CH_3, which has two C=C (takes 2 H) and is

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Question ID VK-044226