JEE Mains · Chemistry · STD 12 -8.1. Aldehydes and ketones
'\(x\)' is the product which is obtained by the hydrolysis of prop-1-yne in the presence of mercuric sulphate under dilute acidic medium at \(333\) K. '\(y\)' is the product which is obtained by the reaction of ethane nitrile with methyl magnesium bromide in dry ether followed by hydrolysis. IUPAC name of product obtained from '\(x\)' and '\(y\)' in the presence of barium hydroxide followed by heating is :
- A 2-Methylpent-4-en-3-one
- B 4-Methylpent-3-en-2-one
- C 4-Methylpent-1-ene
- D 2-Methylpent-3-one
Answer & Solution
Correct Answer
(B) 4-Methylpent-3-en-2-one
Step-by-step Solution
Detailed explanation
Hydrolysis of prop-1-yne in the presence of \(HgSO_4\) and dilute \(H_2SO_4\) yields acetone. \(CH_3-C \equiv CH + H_2O \xrightarrow{Hg^{2+}, H^+} CH_3-CO-CH_3\) Thus, \(x\) is acetone. Reaction of ethane nitrile (\(CH_3CN\)) with methyl magnesium bromide (\(CH_3MgBr\)) followed…
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