Conversion of ethanol to ethanoic acid is catalysed by:

Correct option is B

Sol: The correct answer is ( b) Alkaline $$(KMnO_4)$$ and Acidified $$(K_2Cr_2O_7)$$

Key Points:

The conversion of ethanol ($$C_2H_5OH$$​) to ethanoic acid ($$(CH_3COOH)$$​) involves oxidation reactions, where ethanol is oxidized to acetic acid. The oxidizing agents used in this reaction are:

• ​Acidified Potassium Dichromate ($$(K_2Cr_2O_7)$$​): In an acidic medium, potassium dichromate acts as a strong oxidizing agent, which can oxidize ethanol to acetic acid.
• Alkaline Potassium Permanganate ($$KMnO_4$$​): Potassium permanganate in an alkaline solution also acts as an oxidizing agent and can oxidize ethanol to acetic acid.

All other option:

Acidified ($$(K_2CrO_4)$$​and Alkaline $$(KMnO_4)$$ 

• ​​Acidified $$(K_2CrO_4)$$​ : This is potassium chromate $$(K_2CrO_4)$$​, which is not typically used for oxidation in its acidified form. Instead, acidified potassium dichromate $$(K_2Cr_2O_7)$$​ is the commonly used oxidizing agent for ethanol to acetic acid oxidation.​
  
• ​Alkaline $$KMnO_4$$​: This part is correct. Alkaline $$KMnO_4$$​ (potassium permanganate) can oxidize ethanol to acetic acid.

Alkaline $$K_2MnO_4$$​ and Acidified $$K_2Cr_2O_7$$

• Alkaline $$K_2MnO_4$$​ (Potassium Manganate): Similar to $$KMnO_4$$​ but not as commonly used for this specific reaction.
  
• Acidified $$K_2Cr_2O_7$$​ (Potassium Dichromate): Effective oxidizing agent for converting ethanol to ethanoic acid.

Acidified $$K_2CrO_4$$​ and Alkaline $$KMnO_4$$ 

• Acidified $$K_2CrO_4$$​ (Potassium Chromate): Can act as an oxidizing agent, but less favored compared to $$K_2Cr_2O_7.$$​​
• Alkaline $$KMnO_4$$​ (Potassium Permanganate): Commonly used strong oxidizer for this reaction.

​