Question

21.
Arrange the following in increasing order of acidity
OH
OH
ON
OH
OH
S)
Q)
R)
NO2
P)
NO2
CH3
1) P>Q>R>S
3) S >R>P>Q
2) S>Q >R>P
4) R > S >P>Q​

Answer 1

Answer:

sorry i can't give answer

you have not mention

S )...... Q).........

Answer 2

Answer:

Addition of a +R group (−OCH

3

) to the the benzene ring in phenol reduces its acidic property while addition of a -R group (−NO

2

) to the same phenol ring increases its acidic character.

Hence, the correct sequence in decreasing order of acidity is

(iii)>(ii)>(i)