Quiz - Aldehydes and Ketones | Aldehydes and Ketones - Part 1

1

How many carbon atoms do the aldehydes and ketones contain respectively?

1 and 1

1 and 3

2 and 2

2 and 3

2

Ketones can be prepared by the oxidation of:

Primary alcohols

Secondary alcohols

Tertiary alcohols

Aldehydes

3

Which of the following statements is correct?

The C=O bond of carbonyls is short, strong and very polar

The carbon of the carbonyl is electrophile while the oxygen is nucleophile

The hydrogen on the α-carbon of a carbonyl is acidic

All of the above

4

Which of the following methods results in the synthesis of carbonyls?

Ozonolysis of alkenes

Friedel-Crafts alkylation

Reduction of alkynes

None of the above

Ozonolysis of Alkenes:
 

5

What is the first step in the carbonyl addition reaction under acidic conditions?

Protonation of the oxygen of C=O

Addition to oxygen of C=O

Addition to carbon of C=O

Nucleophilic attack

Mechanism of the addition reaction under acidic conditions:

6

Which of the following reactions results in the formation of an acetal from a carbonyl?

Addition of hydrides

Addition of water

Addition of alcohols

Addition of amines

Formation of acetal: