Arrange the following groups in increasing order of - I effect
a)
b) -F
c) -OH
d)
a < b < c < d
b < c < a < d
c < d < b < a
d < c < b < a
-I effect is directly proportional to the electronegativity of the key elements of the group
In is in + 5 oxidation state which makes it most electron deficient as compared to other given option
electronegativity
So, the order of - I effect shown by the given groups must be
Order will be:- d < c < b <a
Option 4 is correct.