Tertiary alcohols produce_with acidified KMnO4
Correct answer: D. Alkene
- A. Ketones
- B. Malonic acid
- C. Aldehydes
- D. Alkene
Explanation
Tertiary alcohols do not undergo oxidation with acidified potassium permanganate (KMnO4). They give no reaction. Aldehydes and ketones,are all oxidized by acidified KMnO4 to give different products. Aldehydes are oxidized to carboxylic acids, ketones are oxidized to dicarboxylic acids.Tertiary alcohols are resistant to oxidation.In the presence of KMnO4 they undergoes elimination reaction to give alkenes.CH2=CH2 + KMnO4 + H2SO4 → CH2CO2H + MnSO4 + H2O.The reaction of tertiary alcohols with acidified KMnO4 is not a common reaction. This is because tertiary alcohols do not have a hydrogen atom on the carbon atom attached to the hydroxyl group. This hydrogen atom is necessary for the oxidation reaction to occur.
Report an error
The more specific you are, the faster it gets fixed. A source beats an opinion.
Prefer email? [email protected]
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.
Discussion
Stuck on an option, or know a faster way to get there? Ask or explain it here.
No comments yet. Be the first to explain this one.
Exams that ask Chemistry questions like this
Chemistry is on 14 papers prepared for on TestUstad, and all of them draw the same bank, so this question is worth knowing for every one of them.
More Alcohols and Phenols questions
The reaction of carbolic acid with caustic soda is used to produce colorless product. The molecular formula of the product is:
K2Cr2O7/H2SO4 generates:
Which inorganic reagent may be used to distinguish between phenol and methanol:
Oxidation of secondary alcohol gives:
Choose the correct option
Choose the correct one.