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Chemistry
Consider the following phenols: The decreasing order of acidity of the above phenols is
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Q. Consider the following phenols :
The decreasing order of acidity of the above phenols is
BITSAT
BITSAT 2014
A
III > IV > II > I
88%
B
II > I > IV > III
0%
C
I > IV > II > III
0%
D
III > IV > I > II
12%
Solution:
Electron withdrawing group $(-NO_2)$ increases the acidity while electron releasing group $(-CH_3, -H)$ decreases acidity. Also effect will be more if functional group is present at para position than ortho and meta position.