Propyne reacts with aqueous sulphuric acid in the presence of HgSO4 to form?
Correct answer: A. Acetone
- A. Acetone
- B. 1-propanol
- C. 2-propanol
- D. Acetaldehyde
Explanation
The reaction of propyne with dil. Sulphuric acid, in the presence of HgSO4, is a hydrolysis reaction. In this reaction, first, enol is formed, which contains a double bond (ene) and an alcoholic group (ol). But enol formed is unstable in acidic conditions. So it isomerizes to keto form by rearrangement into stable keto form. Therefore, in this reaction, acetone is formed.
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Hydrocarbons are studied through the structures and reactions of alkanes, alkenes, alkynes and aromatic compounds. Coverage includes free radical substitution in alkanes, electrophilic addition to carbon-carbon multiple bonds, benzene substitution, aromatic stability and the difference between addition reactions of alkenes and substitution reactions of benzene.
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