Predict the product 'B' in the sequence of reaction CH≡CH30%H2SO4⟶HgSO4Adil.NaOH⟶≃10oCB
A
CH3COONa
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B
CH3COOH
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C
CH3CHO
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D
CH3−C|HOH−CH2−CHO
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Solution
The correct option is CCH3−C|HOH−CH2−CHO
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.