2 - chloro - 2 - methylpentane on reaction with sodium methoxide in methanol yields: (i) (ii) (iii)

When given reactant reacts with the sodium methoxide solution then both substitution and elimination reactions are possible.

Substitution reaction gives the following product through ${\mathrm{S}}_{{\mathrm{N}}^1}$ reaction.

${\mathrm{E}}^1$ will give the following products