Question

Convert formic acid into oxalic acid

Answer 1

Well here it goes :

Formic acid on reaction with NaOH gives Sod. Formate, which on being heated at 400 deg C yields sodiun oxalate, which on further being treated with dil. HCL yields Oxalic acid.

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Answer 2

The Formic Acid i.e. HCCOH is converted into Oxalic Acid using a sequential series of reactions i.e. Free Radical followed by Nucleophilic Substitution followed by Hydrolysis reaction.

Formic Acid Formula : HCCOH

Oxalic Acid Formula : C2H2O4

The Formic Acid can be converted into Oxalic Acid using 3 steps.

Step 1 : Free Radical Reaction of Formic Acid

Here, the Formic Acid is treated with Chlorine in the presence of sunlight to replace the H-Bond with Cl-Bond using radical formation.

                 $HCOOH ---Cl_{2} + Sunlight --- ClCOOH$

Step 2 : Neuclophilic Substitution Reaction

Here, the Cl-Bond Formic Acid replacement is reacted with KCN i.e. Potassium Cyanide to replace the Cl-Bond with CN-Bond.

              $ClCOOH + KCN ----- > CNCOOH + KCl$

Step 3 : Hydrolysis Reaction

The CN-bond compound is then undergone Hydrolysis i.e. reacted with H30+ to form the required Oxalic Acid.

               $CNCOOH + H_{3}O^{+} ------ > C_{2}H_{2} O_{4}$

Thus, after multiple reactions involving free Radical, Substitution, and Hydrolysis, we convert Formic Acid into Oxalic Acid.

To learn more about Formic Acid, visit

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