Top 80+ Solved Aldehydes and Ketones MCQ Questions Answer
Q. The typical reactions of aldehyde is………………….
a. Electrophilic addition
b. Nucleophilic substitution
c. Nucleophilic addition
d. Nucleophilic elimination
Q. Which will not give acetamide on reaction with ammonia …………
a. Acetic acid
b. Acetyl chloride
c. Acetic anhydride
d. Methyl formate
Q. The addition of HCN to carbonyl compounds is an example of ……….
a. Nucleophilic substitution
b. Electrophilic addition
c. Nucleophilic addition
d. Electrophilic substitution
Q. Which of the following reagents is used to distinguish acetone and Acetophenone?
a. NaHSO3
b. Grignard reagent
c. Na2SO4
d. NHCl4
Q. The product formed by the reaction of chlorine with benzaldehyde in the absence of a catalystis…………..
a. Chlorobenzene
b. Benzyl chloride
c. Benzoyl Chloride
d. o –Chlorobenzaldehyde
Q. Which one of the following reacts with HCN and Tollen's reagent, but is not oxidised by Fehling'ssolution……………
a. Methanal
b. Ethanal
c. Benzaldehyde
d. Acetone
Q. During reaction of benzaldehyde with alkali one of the product is…………
a. Phenol
b. Benzyl alcohol
c. Benzene
d. Benzophenone
Q. When two molecules of acetaldehyde condense in the presence of dilute alkali, it forms………….
a. Acetal
b. Sodium formate
c. Aldol
d. Methylene
Q. Acetaldehyde and acetone can be distinguished by……………
a. Molisch test
b. Bromoform test
c. Solubility in water
d. Tollen's test
Q. Aldehyde turns pink with ………….
a. Benedict solution
b. Schiff reagent
c. Fehling solution
d. Tollen's reagent
Q. The reagent with which both aldehyde and acetone react easily is…………….
a. Fehling's reagent
b. Grignard reagent
c. Schiff's reagent
d. Tollen's reagent
Q. Acetal is obtained by reacting in the presence of dry HCl and alcohol with…………..
a. Aldehyde
b. Ketone
c. Ether
d. Carboxylic acid