A) acetic acid
B) ethanoic acid
C) oxalic acid
D) formic acid
Correct Answer: D
Solution :
The fatty acid that shows reducing property is formic acid. Formic acid have both groups carboxylic as well as aldehyde \[\underset{\text{Formic}\,\text{acid}}{\mathop{H-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-OH}}\,\,\underset{\text{Carboxylic}\,\text{group}}{\mathop{H-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-OH}}\,\,\underset{\text{Aldehyde}}{\mathop{H-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-OH}}\,\,\] This aldehyde group reduces Tollen's reagent \[\underset{\text{Formic}\,\text{acid}}{\mathop{HCOOH}}\,+A{{g}_{2}}O\xrightarrow{\text{Ammonical}\text{AgN}{{\text{O}}_{\text{3}}}}\] \[{{H}_{2}}O+\underset{\text{Silver}\,\text{mirror}}{\mathop{C{{O}_{2}}+2Ag}}\,\]
You need to login to perform this action.
You will be redirected in
3 sec
