IUPAC name is 2,2-Dimethylpentane.
Step 1: Find the longest continuous carbon chain Here the longest chain has 5 carbons (Root word: Pent)
Step 2: Identify and name the groups that are attached to this chain. Here two methyl groups are present on the 2nd C atom of this chain.
Step 3: Here the compound is saturated, hence Suffix is “ane”.