A) Oxalic acid
B) Formic acid
C) Picric acid
D) Citric acid
Correct Answer: C
Solution :
Key Idea: Draw all the structures to find which of them has phenolic \[-OH\] group. [a] Oxalic acid\[\begin{align} & COOH \\ & | \\ & COOH \\ \end{align}\] [b] Formic acid\[HCOOH\] [d] Critic acid \[HOOC-C{{H}_{2}}-\underset{\begin{smallmatrix} | \\ COOH \end{smallmatrix}}{\overset{\begin{smallmatrix} OH \\ | \end{smallmatrix}}{\mathop{C}}}\,-C{{H}_{2}}-COOH\] \[\therefore \]Picric acid has phenolic \[-OH\] group.You need to login to perform this action.
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