Question

C₂H₅OH on oxidation with alkaline KMnO₄ gives the compound A, which on further oxidation gives the compound B. The names of A, B respectively are

• A. methanal, methanoic acid
• B. ethanal, ethanoic acid
• C. ethene, propanoic acid
• D. ethyne, ethanoic acid

Answer 1

The Correct Option is B

Step-by-step oxidation process:

• Ethanol (\( \text{C}_2\text{H}_5\text{OH} \)) is first oxidized to ethanal (\( \text{CH}_3\text{CHO} \)), which is compound \( A \).
• Ethanal is further oxidized to ethanoic acid (\( \text{CH}_3\text{COOH} \)), which is compound \( B \).

 

Final Answer: The names of compounds \( A \) and \( B \) are \( \mathbf{\text{ethanal, ethanoic acid}} \), which corresponds to option \( \mathbf{(2)} \).