A) ethanol
B) o-nitrophenol
C) o-methylphenol
D) o-methoxyphenol
Correct Answer: B
Solution :
o-nitrophenol is more acidic than phenol because\[-\,l,\]\[-\,m\] groups \[(N{{O}_{2}})\] increases acidic character and + l, + m groups \[(C{{H}_{3}},\,\,OC{{H}_{3}})\] decreases acidic character.
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