Aldehydes and Ketones MCQ B.Sc. Second year UG degree course Semester Third Organic Chemistry paper VII (Part-1)

 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

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