Arrange the following in order of reactivity forwards SN2 displacement: 1-Bromobutane, 1-Bromo-2-methylbutane, 1-Bromo-3-methylbutane

(a) Account for the following : (i) Electrophilic substitution reactions in haloarenes occur slowly. (ii) Haloalkanes, though polar, are insoluble in water. (b) Arrange the following compounds in increasing order of reactivity towards S_(N)2 displacement: 2-Bromo-2-Methylbutane, 1-Bromopentane, 2-Bromopentane

Arrange the compounds of each set in order of reactivity towards S_(N)2 displacement: (i) 2-Bromo-2-methylbutane, 1-Bromopentane, 2-Bromopentane (ii) 1-Bromo-3-methylbutane, 2-Bromo-2-methylbutane, 2-Bromo-3-methylbutane (iii) 1-Bromobutane, 1-Bromo-2,2-dimethylpropane, 1-Bromo-2-methylbutane, 1-Bromo-3-methylbutane.

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

1-bromo-3-methoxypropane