Chapter 2, Problem 2.13P

Interpretation Introduction

Interpretation:

In the given structure of $\text{4-}$sec-$\text{butyl-5-ethyl-3-methyloctane}$, the ethyl groups and the methyl groups are to be identified.

Concept introduction:

Carbons in the chemical formula may or may not be branched. The branched carbons are categorized as primary, secondary, tertiary, and quaternary carbons depending on the substituent attached to it. The branched carbons are categorized to understand the chemical reactions in which these carbons are involved.

The hydrogen atoms attached to branched carbons are also categorized as primary, secondary and tertiary hydrogen atoms.