The reaction involves

The reaction involves
  1. electrophilic addition across double bond
  2. nucleophilic addition across double bond
  3. free radical addition across double bond
  4. no effect of the $\mathrm{CO}$ group on the $\mathrm{C}==\mathrm{C}$ bond

Solution

Addition across $\mathrm{C}=\mathrm{O}$ group occurs via nucleophilic mechanism.

Asked in: JEE-TOPICTESTS-CHEMISTRY

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