HARD
AS and A Level
IMPORTANT
Earn 100
Give the structural formulae of the organic products formed in both the steps of reaction of propanone warmed with an alkaline iodine solution, a yellow precipitate is formed.
Important Questions on Carbonyl Compounds
HARD
AS and A Level
IMPORTANT
Explain, naming any organic products formed, why ethanol gives a positive test (yellow precipitate) when warmed with alkaline iodine solution.
HARD
AS and A Level
IMPORTANT
Which of these compounds will give a yellow precipitate when treated with alkaline aqueous iodine?
EASY
AS and A Level
IMPORTANT
Name the following compound:
MEDIUM
AS and A Level
IMPORTANT
Name the reagent you would add to an unknown compound to test if it contains a carbonyl group.
MEDIUM
AS and A Level
IMPORTANT
Describe what you would see if the unknown compound did contain a carbonyl group.
MEDIUM
AS and A Level
IMPORTANT
Describe why it would be useful to find the melting point of the product of the test of identification of unknown carbonyl carbon.
EASY
AS and A Level
IMPORTANT
Draw the skeletal formulae of :
pentan--one
HARD
AS and A Level
IMPORTANT
Describe the results you would expect to see if pentan--one and pentanal were separately treated with Tollens' reagent. Where a reaction takes place, name the organic product and name the type of reaction that takes place.
