Justify and arrange the following compounds namely, ethyl chloride, isopropyl chloride, tertiary butyl chloride in increasing order of reactivity towards the asked displacement namely :
(a)
(b)
a) ethyl chloride isopropyl chloride
tertiary butyl chloride
Due to increasing stability of carbocation
(b) tertiarybutylchloride isopropyl chloride
ethyl chloride
Due to decreasing steric hindrance