A) Acetic acid
B) Butyric acid
C) Formic acid
D) Carboxylic acids do not give this test
Correct Answer: C
Solution :
Formic acid (HCOOH) has an aldehydic group in it, and hence, give Tollens test. \[H-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-OH+A{{g}_{2}}O\xrightarrow{{}}C{{O}_{2}}+{{H}_{2}}O+2Ag\downarrow \] Other carboxylic acids do not give this test.
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