Question

Why is Wurtz synthesis not a good method for preparing propane

Answer 1

This is because it is more appropriate in case of compounds which have an even number of carbon atoms present whereas propane has only 3 carbon atoms.

Answer 2

Answer: Due to formation of mixture of alkanes.

Explanation:

Wurtz's reaction is a coupling reaction of two alkyl halide molecules in presence of sodium metal in dry ether to produce a higher alkane molecule.

But due to the formation of mixtures of alkanes, Wurtz reaction is not a good method for the manufacture of alkane with an odd number of carbon atoms.

As Propane is a hydrocarbon or alkane with $3$ carbon atoms, so this is not a good method its preparation.