Question

Give the common name for each of the following.

Short answer

Common name of compound corresponding to given structure are:

(a) Dimethyl ketone:

(b) Diethyl ketone:

(c) Propionaldehyde:

Step-by-step solution

Part (a) Step 1: Given Information

We need to find the common name of the given compound:

Part (a) Step 2: Explanation

We are given a compound in which $C=O$present at localid="1653105688508" $2^{nd}$position as functional group so compound is ketone. Also it contains four carbon atoms. So, IUPAC name of compound is $2-$Butanone. Hence, common name of compound is dimethyl ketone.

Part (b) Step 1: Given Information

We need to find the common name of the given compound:

Part (b) Step 2: Explanation

We are given a compound in which $C=O$present at $3^{rd}$position as functional group so it is ketone. Also it contains five carbon atoms. So, IUPAC name of compound is$3-$Pentanone. Hence, common name compound of is diethyl ketone.

Part (c) Step 1: Given Information

We need to find the common name of the given compound:

Part (c) Step 2: Explanation

We are given a molecule in which $-CHO$is present as functional group so compound in an aldehyde. Also molecule contains three carbon atoms . So name of compound is propanal. Common name of propanal is propionaldehyde.