Given are cyclohexanol; (I) acetic acid (II), 2, 4, 6 - trinitrophenol (III) and phenol (IV) . In these the order of decreasing acidic character will be:
III > II > IV > I
II > III > I > IV
II > III > IV > I
III > IV > II > I
As we learnt in
Stability due to resonance -
More the no of resonating structure more is the stability.
- wherein
in(iii), there are three group which have both - I and -M effect hence it is most stabilized aftet donating H+.
Because of resonance it is more stable.
Option 1)
III > II > IV > I
Correct
Option 2)
II > III > I > IV
Incorrect
Option 3)
II > III > IV > I
Incorrect
Option 4)
III > IV > II > I
Incorrect