Oxidation

Question 1

What are two type of oxidation?

Answer 1

1. Mild oxidation

2. Oxidation cleavage

Question 2

Describe mild oxidation

Answer 2

(R): KMnO4 (aq.) + H2SO4 (aq.)/NaOH (aq.)

(C): cold

Question 3

Distinguish test for detecting C=C

Answer 3

Acidic: purple KMNO4 decolourises to colourless

Alkaline: purple KMnO4 decolourises and brown pot of MnO4 observed

Question 4

Describe oxidative cleavage

Answer 4

(R): KMnO4 (aq.) + H2SO4 (aq.)

(C): reflux at hot condition

Question 5

Three products of oxidative cleavage?

Answer 5

• carboxylic acid
• ketone
• CO2 + H2O (from aldehydes)