Question

Attempt either (a) or (b): **(a)** A neutral organic compound 'A' (molecular formula $	ext{C}_2	ext{H}_6	ext{O}$) reacts with acidified $	ext{K}_2	ext{Cr}_2	ext{O}_7$ and on oxidation gives an acidic compound 'B'. Compound 'A' reacts with compound 'B' on warming, in the presence of concentrated $	ext{H}_2	ext{SO}_4$ to give a sweet smelling substance 'C'. What are A, B and C? Also write their structures.

Accepted Answer

1. **Identification:** - **A:** Ethanol ($	ext{CH}_3	ext{CH}_2	ext{OH}$) - **B:** Ethanoic acid ($	ext{CH}_3	ext{COOH}$) - **C:** Ethyl ethanoate / Ester ($	ext{CH}_3	ext{COOCH}_2	ext{CH}_3$) 2. **Chemical Structures:** - Ethanol (A): $	ext{CH}_3-	ext{CH}_2-	ext{OH}$ - Ethanoic acid (B): $	ext{CH}_3-	ext{C}(=	ext{O})-	ext{OH}$ - Ethyl ethanoate (C): $	ext{CH}_3-	ext{C}(=	ext{O})-	ext{O}-	ext{CH}_2-	ext{CH}_3$

Oxidation and Esterification reaction of Ethanol

Explanation

Practise this under board exam conditions