Chapter 12.8, Problem 3QQ

Interpretation Introduction

Interpretation:

Among the given statements, the one which in incorrect about the IUPAC nomenclature rules for alkanes has to be identified.

Concept Introduction:

Any organic molecule can be named by using certain rules given by IUPAC (International Union for Pure and applied chemistry).  IUPAC name consists of three parts in major namely Prefix suffix and root word.

Prefix represents the substituent present in the molecule and its position in the root name.

Suffix denotes the presence of functional group if any in the molecule.  It can be an alkene, alkyne, alcohol, carboxylic acid, alcohol etc.

Root word represents the longest continuous carbon skeleton of the organic molecule.

To name an alkane, the first step is to find the longest continuous chain.  Second step is to identify the substituents present in the longest continuous chain and number the chain so that the substituents gets the least numbering.