Give the order of reactivity towards `SN^(1)` reaction of the followig:
a. i. `1-` Bromopentane
ii. `2-` Bromopenatane
iii. `2-` Bromo `-2` methyl butane

The increasing order of reactivity towards SN^2 reactivity is

Arrange the following compounds in correct decreasing order of reactivity towards S_(N^(2)) displacement reactions: (i). 1-Bromo-2-methylbutane (ii). 1-Bromo-2,2-dimethylpropane (iii). 1-bromo- methylbutane (iv). 1-Bromobutne

Arrange in order of reactivity towards S_(N)2 reactions: (1) 2-bromo-2-methyibutane, 1 -bromopentane, 2-bromo pentane.

Rearrange the compounds of each of the following sets in order of reactivity towards S_(N_(3)^(2)) displacement : (i) 2- Bromo-2-methylbutane, 1-Bromopentane, 2- Bromopentaure. (ii) 1- Bromo-3-methylbutance, 2-Bromo-2-methylbutance,3-Bromo-2- methybutane. (iii) 1- Bromobutane, 1- Bromo-2, 2-dimethylbutane 1-Bromo -2- methylbutane.