NEET levelSingle correct optionDifficulty 1 of 3hc001
Sodium metal in dry ether is heated with an equimolar mixture of CHX3Br and CHX3CHX2Br (Wurtz reaction). How many different alkanes are formed?
A1
B3
C2
D4
Answer: B
Wurtz coupling joins two alkyl groups. CHX3 with CHX3 gives ethane, CHX3CHX2 with CHX3CHX2 gives butane, and the cross coupling gives propane. So three alkanes form.