sk025 lab report reactions of aliphatic and aromatic hydrocarbons

Title:

Reactions of aliphatic and aromatic hydrocarbons

Objectives:

1. To study the chemical properties of an alkane, alkene and arene
2. To differentiate an alkane from an alkene and arene

Result:

Test Bromine in dichloromethane Oxidation with alkaline KMnO4
Under sunlight In the dark (Baeyer’s Test)
Hydrocarbons
Cyclohexane Reddish brown Br2 Reddish brown Br2 remain Purple colour of KMnO4 solution
decolourised unchanged remain unchanged
Cyclohexene Reddish brown Br2 Reddish brown Br2 Purple colour of KMnO4 solution
decolourised decolourised decolourised
Toluene Reddish brown Br2 Reddish brown Br2 remain Purple colour of KMnO4 solution
decolourised unchanged remain unchanged