Question

The root word in the IUPAC name of an organic compound depends upon the number of carbon atoms in ______.

Options

• any chain

• principal chain

Answer 1

The root word in the IUPAC name of an organic compound depends upon the number of carbon atoms in principal chain.

Explanation:

In IUPAC nomenclature, the root word is determined by the number of carbon atoms in the principal (longest continuous) chain of the organic compound. The longest chain rule, which includes maximum functional groups and multiple bonds if present, determines the principal chain.