Question

21. What is Oxidation reaction? Write the reaction of conversion of alcohol into
carboxylic acid
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Answer 1

Answer:

oxidation of primary alcohols to carboxylic acids is an important oxidation reaction in organic chemistry.

These reactions in the presence of  Cr2O7(2-)  

Reaction as follows  

3CH₃-CH₂-OH + 2Cr₂O₇²⁻ + 16H⁺→ 3CH₃COOH + 4Cr³⁺ + 11H₂O  

Answer 2

Answer:

Redox is a type of chemical reaction in which the oxidation states of atoms are changed. Redox reactions are characterized by the actual or formal transfer of electrons between chemical species, most often with one species undergoing oxidation while another species undergoes reduction

Making Carboxylic Acids by Oxidation of Primary Alcohols or Aldehydes. Primary alcohols and aldehydes are normally oxidized to carboxylic acids using potassium dichromate(VI) solution in the presence of dilute sulfuric acid. During the reaction, the potassium dichromate(VI) solution turns from orange to green