JEE Main Chemistry question

Which of the following will not produce ethane?

(A)Reduction of CHCOOH with HI and red P
(B)Reduction of CHCOCH with HI and red P
(C)Soda-lime decarboxylation of sodium propionate
(D)"Hydrogenation" of ethane in presence of Raney NiCorrect

Answer: (D)

Solution

HI/red phosphorus is a powerful reducing agent that fully deoxygenates a carbonyl/acid carbon to a simple C–H/C–H group, so both acetic acid (2 carbons) and, where the carbon count matches, suitable carbonyl precursors can be reduced through to ethane; soda-lime decarboxylation of sodium

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Question ID VK-142354