Question

How many sigma and pi bonds are in the Lewis structure for $ CHCC{H_2}COOH $ ?

Answer 1

Hint: In order to answer the question, first we will write the IUPAC name of the given compound and then draw the structural formula of the given compound. And then discuss the presence of sigma and pi bonds.

Complete answer:
The structural formula and IUPAC name of the given compound is

To know the no. of $ \sigma \,and\,\pi $ bonds the Lewis structure of the compound is to be drawn showing all single, double and triple bonds. In this structure
 Each single bond is $ 1\sigma $ bond
 Each double bond is $ 1\sigma \,and\,1\pi $ bond
 Each triple bond is $ 1\sigma \,and\,2\pi $ bond
Using this information we can get the no. of $ \sigma \,and\,\pi $ bonds in the given structure
 $ 7single{\text{ }}bonds \to 7\sigma bonds $
 $ 1double{\text{ }}bond \to 1\sigma \,and\,1\pi \,bonds $
 $ 1triple{\text{ }}bond \to 1\sigma \,and\,2\pi \,bonds $

Note:
$ 3 - butenoic acid $ is a monocarboxylic acid consisting of acetylene carrying a carboxymethyl group. It is a monocarboxylic acid and a terminal acetylenic compound. It is a conjugate acid of a $ 3 - butenoate $ .