Primary alcohols upon oxidation with acified dichromate gives:
Correct answer: A. Aldehydes
- A. Aldehydes
- B. Ketones
- C. Alkenes
- D. Alkynes
Explanation
The controlled oxidation of a primary alcohol with an oxidizing agent like acidified potassium dichromate will remove two hydrogen atoms to form an aldehyde. If the oxidizing agent is strong and not controlled, the aldehyde will be further oxidized to a carboxylic acid.
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.