Answer
The IUPAC names of the compounds are:
(a) 2,2- Dimethylpentane
(b) 2,3- Dimethylpentane
(c) 2-Methylpropene or 2-Methylprop-1-ene
(d) Cyclohexa-1,3-diene or 1,3-Cyclohexadiene
Work Step by Step
While naming the compounds, the following rules must be followed:
1. Count the number of carbon atoms in the longest chain and assign the base name with the appropriate suffix -ane or -ene.
2. Determine the position and name of the substituents or branches, if any. These are written before the base name.
3. Cyclic compounds have the prefix cyclo- in their names.
4. If the compound has more than one double bond, assign position numbers to the bonds and mention them while naming the compound.