Chemistry - Carboxylic acid and their Derivatives Question with Solution | TestHub

Vinyl acetate has following structure
$\stackrel{\mathrm{H}}{\underset{\mathrm{H}}{\underset{\mathrm{\sigma }|}{\stackrel{\mathrm{\sigma }|}{\mathrm{C}}}}}\stackrel{\mathrm{\sigma }}{\underset{\mathrm{\pi }}{=}}\stackrel{\mathrm{H}}{\stackrel{|\mathrm{\sigma }}{\mathrm{C}}}\underset{\mathrm{\sigma }}{-}\mathrm{O}\underset{\mathrm{\sigma }}{-}\stackrel{\mathrm{O}}{\stackrel{\mathrm{\sigma }\left|\right|\mathrm{\pi }}{\mathrm{C}}}-\stackrel{\mathrm{H}}{\underset{\mathrm{H}}{\underset{\mathrm{\sigma }|}{\stackrel{|\mathrm{\sigma }}{\mathrm{C}}}}}\underset{\mathrm{\sigma }}{-}\mathrm{H}$
Total$\mathrm{\sigma }$bond = x = 11
Total$\mathrm{\pi }$bond = y = 2
Total sum x + y = 11 + 2 = 13