Question

The number of $\sigma$ and $\pi$-bonds in $5$-oxohexanoic acid, respectively, are:

• A. $18,2$
• B. $18,1$
• C. $17,2$
• D. $17,1$

Answer 1

The correct option is A $18,2$

From molecular structure,

$5-oxohexanoicacid$ has total $18$ $\sigma$ bonds. And $2$ $\pi$ bonds from carbonyl of ketone and carboxylic acid group.

Hence, the correct option is (A).