Chapter 8, Problem 75AP

(a)

Interpretation Introduction

Interpretation:

Half reactions and overall reaction for the process of oxidation of ethanolto acetaldehydeby NAD+ should be written.

Concept Introduction:

The reaction in which the oxidation number of an element decreases is called reduction.
The reaction in which the reduction number of an element increases is called oxidation.
Both the oxidation and reduction process takes place simultaneously.

(b)

Interpretation Introduction

Interpretation:

Half reactions and overall reaction for the process of reduction of pyruvateto lactic acid by NADH should be written.

Concept Introduction:

The reaction in which the oxidation number of an element decreases is called Reduction.
The reaction in which the reduction number of an element increases is called Oxidation.
Both the oxidation and reduction process takes place simultaneously.