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Question

Predict the product 'B' in the sequence of reaction
CHCH30%H2SO4HgSO4Adil.NaOH10oCB

A
CH3COONa
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B
CH3COOH
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C
CH3CHO
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D
CH3C|HOHCH2CHO
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Solution

The correct option is C CH3C|HOHCH2CHO

Compound A is acetaldehyde and compound B is 3-hydroxybutanal. A molecule of water is added to acetylene to form vinylic alcohol which tautomerizes to acetaldehyde. This is followed by aldol condensation to form 3-hydroxybutanal.
517455_263476_ans_7ece18aebb73449681f2a48e7d3b73a0.png

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