Asked in ETEA MDCAT 2013 2013Moderate

To distinguish among primary, secondary and tertiary alcohols which of the following tests is used?

Correct answer: C. Lucas test

  • A. Benedicts reagent
  • B. Tollen's reagent
  • C. Lucas test
  • D. None of the above

Explanation

The lucas test is used to differentiate between primary, secondary and tertiary alcohols,an oily layer of alkyl halides separates out in these reactions. With the oily layer being formed immediately in tertiary alcohols, in 5 - 10mins in secondary and only on heating in primary. Therefore the answer is C.

Last updated

About Alcohols

Alcohols contain a hydroxyl group attached to a saturated carbon atom and are classified as primary, secondary or tertiary. Their nomenclature, hydrogen bonding, acidity, oxidation, dehydration, reaction with sodium and conversion to haloalkanes are covered, along with the distinction between alcohols and phenols, where the hydroxyl group is attached directly to an aromatic ring.

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.

Related questions