Chapter 23, Problem 52PS

(a)

Interpretation Introduction

Interpretation: The name and structural formula for the products obtained from the reaction between ${\text{CH}}_3{\text{CH}}_2{\text{CH}}_2{\text{CH}}_2{\text{CHO and LiAlH}}_{\text{4}}$ has to be given

Concept introduction:

Reduction reaction: The reaction in which addition of hydrogen takes place

However, the reaction of carbonyl compounds with ${\text{LiAlH}}_{\text{4}}$ is a reduction reaction and the products obtained are alcohols depending upon the starting material. An aldehyde on reduction gives a primary alcohol while ketone gives a secondary alcohol as the main product.

(b)

Interpretation Introduction

Interpretation: The name and structural formula for the products obtained from the reaction between ${\text{CH}}_3{\text{CH}}_2{\text{CH}}_2{\text{CH}}_2{\text{CH}}_2{\text{OH and KMnO}}_{\text{4}}$ has to be given

Concept introduction:

Oxidation reaction: The reaction in which addition of oxygen takes place.

The reaction of a primary alcohol with ${\text{KMnO}}_{\text{4}}$ gives a carboxylic acid. The conversion of an alcohol to a carboxylic acid is an oxidation reaction, so ${\text{KMnO}}_{\text{4}}$ is acting as a oxidizing agent.