Order of reactivity towards nucleophilic substitution reaction of the compounds

Options

A. (i) gt (ii) gt (iii) gt (iv)
B. (ii) gt (i) gt (iii) gt (iv)
C. (iv) gt (iii) gt (ii) gt (i)
D. (iii) gt (iv) gt (ii) gt (i)

Answer

C

Explanation

Nucleophile will preferentially attack the compound which has lower electron density. Out of the given options, (iv) has four electron withdrawing groups and is the most preferred substrate. So, the order is (iv)>(iii)>(ii)>(i).