Treatment of ethene with cold sulphuric acid, followed by reaction with boiling water, yields:
Correct answer: C. Ethanol
- A. Ethane
- B. Ethanal
- C. Ethanol
- D. Ethyne
Explanation
The scenario describes the overall reaction of the addition of OH or hydration of ethene. Upon reacting with sulfuric acid, it forms an intermediate, which is ethyl hydrogen sulfate, and upon boiling with water, it forms ethanol as sulfuric acid is regenerated. The answer is C.Option A, ethane is formed upon hydrogenation of ethene.Option B, ethanal is formed upon oxidation of the ethanol, which is formed.Optio D, ethyne is formed upon treatment of ethene with Bromine, followed by heating in the presence of alcoholic KOH.
Last updated
About Alcohols and Phenols
Alcohols are classified as primary, secondary or tertiary and studied through their hydrogen bonding, acidity, oxidation and reactions with active metals, acids and halogenating agents. Phenols require separate treatment because the hydroxyl group is attached to an aromatic ring, making their acidity and electrophilic substitution different from ordinary alcohols.
Practise Alcohols and Phenols
535 free Alcohols and Phenols MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
Exams that ask Chemistry questions like this
Chemistry is on 12 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.