quiz 10

Question 1

When an enol or an enolate ion reacts with a carbonyl compound to form a β-hydroxy aldehyde or β-hydroxy ketone followed by dehydration to give a conjugated enone, it is called

Answer 1

Aldol condensation

Question 2

Which of the following will not undergo aldol condensation?

Answer 2

HCHO

Question 3

Which of the following compounds will most readily undergo nucleophilic attack?

Answer 3

CH3COCl

Question 4

Carbon-carbon bonds are not formed in which of the following reactions?

Answer 4

Cannizzaro reaction

Question 5

Which among the following do not undergo aldol condensation: 2-phenylethanal, Trichloroethanal, Benzaldehyde, Ethanal, Propanal.

Answer 5

trichloroethanal and benzaldehyde only

Question 6

Which of the following will undergo self-aldol condensation in the presence of dil. NaOH?

Answer 6

CH3CH2CHO

Question 7

Which of the following is formed when acetaldehydes react in the presence of dil. NaOH?

Answer 7

Aldol

Question 8

Which of the following compounds does not undergo aldol condensation?

Answer 8

Benzaldehyde

Question 9

Which of the following statements is incorrect for aldol condensation reaction?

Answer 9

The product of an aldol reaction between two aldehydes is a β-diketone

Question 10

Acetaldehyde does not react with

Answer 10

both a and b