Consider the acidity of the carboxylic acids.
(i) PhCOOH
(ii) O-NO₂CH₂COOH
(iii) p- NO₂CH.COon
(iv) m-NO₂CH₂COOH
which of the following order is correct?
A. (i) > (ii) > (iii) > (iv)
B. (ii)> (iv)> (1)> (iii)
C. (ii) (iv) > (iii) > (1)
D. (ii) (iii) (iv) > (i)