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CBSE Class 11-science Answered

The major product obtained by the treatment of propyne with aqueous H2SO4 in the preence of HgSO4 is: a) Propanal b) Acetone c) Propanol d) Propyl hydrogen sulphate
Asked by | 11 Dec, 2011, 08:48: PM
Expert Answer
The major product obtained by the treatment of propyne with aqueous H2SO4 in the presence of HgSO4 is Acetone.
 

Addition of water to ethyne in the presence of H2SO4 and HgSO4 gives acetaldehyde. All other alkynes give ketones in this reaction.Water adds to alkynes to form unstable enol intermediates which rearrange to form aldehyde or ketones.

Answered by | 12 Dec, 2011, 10:28: AM
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