Question
Two compounds have the structural formulae $C{H_3} - O - C{H_2}C{H_3}$ and $C{H_3} - C{H_2} - C{H_2}OH$. The above is an example of

Answer

c
The enolic form of ethyl acetoacetate has $18$ sigma bonds and $2$ pi -bonds.

These are as shown below:

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