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(D) The starting material is $pent-2-ene$ (specifically $cis-pent-2-ene$ or $trans-pent-2-ene$).Reductive ozonolysis of $pent-2-ene$ $(CH_3-CH=CH-CH_2

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None of these

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(D) The starting material is $pent-2-ene$ (specifically $cis-pent-2-ene$ or $trans-pent-2-ene$).Reductive ozonolysis of $pent-2-ene$ $(CH_3-CH=CH-CH_2-CH_3)$ using $(i) \ O_3$ and $(ii) \ (CH_3)_2S$ yields acetaldehyde $(CH_3CHO)$ and propanal $(CH_3CH_2CHO)$ as products $(A)$.The Wittig reagent $(Ph)_3P=CH_2$ reacts with aldehydes to convert the carbonyl group $(C=O)$ into an alkene $(C=CH_2)$.Reaction of $CH_3CHO$ with $(Ph)_3P=CH_2$ gives $prop-1-ene$ $(CH_3CH=CH_2)$.Reaction of $CH_3CH_2CHO$ with $(Ph)_3P=CH_2$ gives $but-1-ene$ $(CH_3CH_2CH=CH_2)$.Looking at the options provided in the images,option $(A)$ corresponds to $2-methylprop-1-ene$ and option $(B)$ corresponds to $pent-1-ene$. Neither matches the expected products. However,based on the structure in the image,the question asks for the products of the Wittig reaction on the ozonolysis products. Given the options,if we assume the starting material was different or the options represent the potential alkene products,the correct choice is $D$ (Both $A$ and $B$ are incorrect/not the products).

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