Question

part b
(b) $h_3c - ch - ch_2 - ch_2 - ch_3$
$h_2c - ch_3$
2 - ethylpentane
spell out the full name of the compound.
the correct name is 2 - methylhexane
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Explanation:

Step1: Find the longest carbon chain

The longest carbon chain has 6 carbon atoms (hexane).

Step2: Identify and name substituents

There is a methyl ($-CH_3$) group attached to the second carbon atom.

Answer:

3 - Methylhexane