COMEDK2023ChemistryAlcohols Phenols and Ethers
Which of the following is incorrect?
Options
- APrimary alcohols are very easily oxidised to aldehydes, which are oxidised to acids with same number of C-atom
- BSecondary alcohols are very easily oxidised to ketones, which are oxidised to acids with same number of C-atom
- CSecondary alcohols are easily oxidised to ketones, which are oxidised to acids with lesser number of C-atoms.
- DSecondary and tertiary alcohols on oxidation form acids with lesser number of C-atoms.
Correct answer
B. Secondary alcohols are very easily oxidised to ketones, which are oxidised to acids with same number of C-atom
Step-by-step solution
Primary alcohols are easily oxidised to aldehydes and then to acid, both containing the same number of carbon atoms, while secondary alcohols are easily oxidised to ketones with same number of carbon atoms, but ketone oxidised to carboxylic acid containing lesser number of carbon atoms than original alcohol. Thus all alcohols on oxidation finally give acids but acids obtained from 2^ and 3^ alcohols contain less C-atom.