In the following groups
$$\eqalign{
& \mathop { - OAc}\limits_{\left( {\text{i}} \right)} \cr
& \mathop { - OMe}\limits_{\left( {{\text{ii}}} \right)} \cr
& \mathop { - OS{O_2}Me}\limits_{\left( {{\text{iii}}} \right)} \cr
& \mathop { - OS{O_2}C{F_3}}\limits_{\left( {{\text{iv}}} \right)} \cr} $$
the order of leaving group ability is
A.
(i) > (ii) > (iii) > (iv)
B.
(iv) > (iii) > (i) > (ii)
C.
(iii) > (ii) > (i) > (iv)
D.
(ii) > (iii) > (iv) > (i)
Answer :
(iv) > (iii) > (i) > (ii)
Solution :
The more the electrons withdrawing groups attached to $$- O$$ atom, the more is the ease of leaving.
Releted MCQ Question on Organic Chemistry >> General Organic Chemistry
Releted Question 1
The bond order of individual carbon-carbon bonds in
benzene is