A) m-nitrophenol
B) 2, 4, 6-trinitro-phenol
C) p-nitro-phenol
D) m-nitro benzoic acid
Correct Answer: B
Solution :
2, 4, 6-trimtro-phenol is called picric acid. It is strong acidic in nature due to presence of 3 nitro groups (?I groups), which stabilise the trinitrophenoxide ion by resonance.
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