When ethanol is heated with conc. , a gas is produced. The compound formed, when this gas is treated with cold dilute aqueous solution of Baeyer's reagent, is :
- (A)Formaldehyde
- (B)Formic acid
- (C)Glycol✓ Correct
- (D)Ethanoic acid
Answer: (C)
Solution
Ethanol heated with concentrated undergoes dehydration to form ethene (). When ethene is treated with cold dilute Baeyer's reagent (alkaline ), it undergoes syn-dihydroxylation to form ethane-1,2-diol (ethylene glycol, ). The correct answer is glycol.
JEE Main · 2022 · 29 Jul 2022 · Shift 2 · Single correct option