Chapter 22, Problem 13STP

Interpretation Introduction

Interpretation:

The name of the given compound needs to be determined.

Concept introduction:

The functional group is the group present on the main carbon chain of an organic compound. It determines the chemical properties and the type of reactions an organic compound can show. The name of the group depends on the atoms present in the group for example an −OH group contains O and H atom thus, it is a hydroxyl group. The different functional groups are named according to IUPAC rule.

Name of some functional groups are: -OH: alcohol, -CHO: aldehyde, -COOH: carboxylic acid etc.

Answer to Problem 13STP

Butanoic acid.

Explanation of Solution

The given compound is as follows:

The given general formula is R-COOH.

Here, the functional group is −COOH which is a carboxyl group. Thus, the given substituted hydrocarbon is a carboxylic acid.

There are 4 carbon atoms in the main chain thus, the root name will be “But”. Also, carboxylic group is at 1^st position thus, name of the compound is butanoic acid.

Conclusion

Therefore, the name of the compound is butanoic acid.