Aldehydes & Ketones (A-level only) (AQA A-Level Chemistry): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
ShowHide
Practise the questions
10 questions from this quiz
How are aldehydes typically produced from primary alcohols?
How are aldehydes typically produced from primary alcohols?
Via oxidation and distillation
Which type of alcohol is oxidised to form a ketone?
Which type of alcohol is oxidised to form a ketone?
Secondary alcohol
What is the positive result when Tollens' reagent is heated with an aldehyde?
What is the positive result when Tollens' reagent is heated with an aldehyde?
Silver mirror forms
What happens when Fehling's solution is heated with a ketone?
What happens when Fehling's solution is heated with a ketone?
Solution remains blue
What colour change occurs when an aldehyde is heated with acidified potassium dichromate?
What colour change occurs when an aldehyde is heated with acidified potassium dichromate?
Orange to green
Why are ketones resistant to oxidation compared to aldehydes?
Why are ketones resistant to oxidation compared to aldehydes?
Lack hydrogen on carbonyl carbon
Why do aldehydes have higher boiling points than alkanes with similar ?
Why do aldehydes have higher boiling points than alkanes with similar ?
Permanent dipole-dipole forces
What effect does increasing the carbon chain length have on aldehyde boiling point?
What effect does increasing the carbon chain length have on aldehyde boiling point?
Increases b.p.
How does increased branching affect the boiling point of aldehydes and ketones?
How does increased branching affect the boiling point of aldehydes and ketones?
Decreases b.p.
Why do aldehydes and ketones become less soluble as chain length increases?
Why do aldehydes and ketones become less soluble as chain length increases?
Hydrocarbon chain is non-polar