11. Carbonyl compounds - aldehydes and ketones

Question 1

Obtaining of ketone and aldehye

Answer 1

• Aldehyde and ketones are made by the oxidation of primary and secondary alcohols.
• Oxidation agent: sodium or potassium dichromate(VI) acidified with dilute sulphuric acid
• the orange solution containing the dichromate(VI) ions is reduced to a green solution containing chromium(III) ions.
• You get an aldehyde from primary alcohols and ketone you get from secondary alcohols