WorksheetsLt 11 Carbonyl gp Aldehydes
Total questions: 10
Worksheet time: 5mins
What is the general formula for organic carbonyl compounds?
C2H6
C3H8
CH4
CnH2nO
Which group of carbonyl compounds has the C=O group at the end of the carbon chain?
Aldehydes
Ketones
Esters
Alcohols
What is the suffix used to name aldehydes?
-al
-one
-ol
-ic acid
Which type of carbonyl compound is generally more volatile than the corresponding ketone?
Aldehydes
Ketones
Alcohols
Esters
How are aldehydes and ketones obtained?
By oxidation of the corresponding alcohol
By reduction of the corresponding alcohol
By hydrolysis of esters
By condensation reactions
Which reagent is used to identify aldehydes and ketones based on oxidation reaction?
Schiff's reagent
Fehling’s reagent
Tollen’s reagent
Grignard reagent
What is the common reducing agent used to reduce aldehydes and ketones to alcohols?
All of the above
Zinc in diluted ethanoic acid
Lithium tetrahydridoaluminate (III) [LiAlH4] in ethoxyethane
Sodium tetrahydridoborate (III) [NaBH4] in ethanol (aq)
Which type of carbonyl compound can be oxidized easily?
Aldehydes
Ketones
Alcohols
Esters
What is the product of the reaction between aldehydes and Tollen’s reagent?
Silver metal
Carboxylic acid
Water
Ammonia
What is the main difference in the reactions of aldehydes and ketones?
Aldehydes and ketones have the same oxidation properties
Both aldehydes and ketones cannot be oxidized
Ketones can be oxidized easily, while aldehydes cannot be oxidized easily
Aldehydes can be oxidized easily, while ketones cannot be oxidized easily
