B.Sc. Second year Undergraduate degree course Semester Third Organic Chemistry paper VII
Chapter – Aldehydes and Ketones
Multiple Choice questions
1. The addition of HCN to carbonyl compounds is an
example of
a) nucleophilic addition
b) electrophilic addition
c) free radical addition
d) electromeric addition
2. Which of the following will not give aldol
condensation?
a) Phenyl acetaldehyde
b) 2-Methylpentanal
c) Benzaldehyde
d) 1-Phenylpropanone
3. When propanal reacts with 2-methylpropanal in presence
of NaOH, four different products are formed. The reaction is known as
a) Aldol condensation
b) Cross aldol condensation
c) Cannizzaro reaction
d) HVZ condensation
4. Which of the following compound will undergo self
aldol condensation in the presence of cold dilute alkali?
a) CH ≡ C-CHO
b) CH2 = CHCHO
c) C6H5CHO
d) CH3CH2CHO
5. Which of the following reactions can produce ketones ?
a) Oxidation of primary alcohols
b) Dehydrogenation of primary alcohols
c) Dehydrogenation of tertiary alcohols
d) Oxidation of secondary alcohols
6. What is the catalyst used in the hydrogenation of
acetyl chloride to produce ethanal?
a) Pt over BaSO4
b) Pt over CuSO4
c) Pd over BaSO4
d) Pd over CuSO4
7. Which of the following carbonyl compounds can be
prepared from Rosenmund reaction?
a) Acetophenone
b) Acetone
c) Butanone
d) Benzaldehyde
8. What is formed after the hydrolysis of the product of
the reaction between benzonitrile and methyl magnesium bromide in dry ether?
a) Phenyl acetaldehyde
b) Acetophenone
c) 1-Phenylpropanone
d) Benzaldehyde
9. Which of the following reactions does not give
benzaldehyde?
a) Rosenmund reaction
b) Etard reaction
c) Gatterman-Koch reaction
d) Friedel-Craft acylation reaction
10. Acetaldehyde combines with malonic acid in the
presence of pyridine it gives
a) CH3-CH=CH-COOH
b) Acetic Acid
c) CH3-CH2-CH=CH-COOH
d) CH2=CH-COOH
For More questions on Aldehydes and Ketones
Part-1 Click here
Part-2 Click here
Thermodynamics-I
Thermodynamics-II
Chemical Equilibrium
Phenol MCQ-2
Phenol MCQ-1
Alcohol MCQ-3
Alcohol MCQ-2
Alcohol MCQ-1
Aldehydes and Ketones MCQ-2
Aldehydes and Ketones MCQ-1
Old Question papers Semester-III Paper No. VII, VIII