Question

Which of the alkyl halides(with a clorine or a bromine)undergo hydrolysis at the fastest rate?What's the reason?

Answer 1

Tertiary alkyl halides are less stable(more reactive) towards elimination and SN1reactions as compared to secondary alkyl halides due to the formation of satble carbocation. However, the secondary ones are more reactive towards SN2 due to comparatively less steric hindrance.

Answer 2

alkyl halide containing chloride undergoes hydrolysis reaction at a faster rate since the size of chlorine is comparatively small

the size of bromine is comparatively large

rate of the reaction also depends on the size of the alkyl or aryl group bonded to the halide