Easy MCQ +4 / -1 PYQ · JEE Mains 2022

When ethanol is heated with conc. $\mathrm{H}_{2} \mathrm{SO}_{4}$, a gas is produced. The compound formed, when this gas is treated with cold dilute aqueous solution of Baeyer's reagent, is

  1. A formaldehyde
  2. B formic acid
  3. C glycol Correct answer
  4. D ethanoic acid

Solution

$$$\mathrm{CH}_{3}-\mathrm{CH}_{2}-\mathrm{OH} \frac{\text { Conc. } \mathrm{H}_{2} \mathrm{SO}_{4}}{\Delta} \mathrm{CH}_{2}=\mathrm{CH}_{2} \frac{\text { Cold dil solution of }}{\text { Bayers reagent }} \mathrm{OH}-\mathrm{CH}_{2}-\mathrm{CH}_{2}-\mathrm{OH}\,(\text {Glycol})$$$

About this question

Subject: Chemistry · Chapter: Alcohols, Phenols and Ethers · Topic: Preparation and Properties of Alcohols

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