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.Management Sciences
Category: Aldehydes and Ketones
Acetone reacts with HCN to form a cyanohydrin. It is an example of________________?
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A. electronphilic addition
B. electrophilic substitution
C. nucleophilic addition
D. nucleophilic substitution
Formaldehyde condenses with phenol in the presence of dilute H2SO4 to yield________________?
A. Nylon 66
B. urotropine
C. Aniline formaldehyde plastic
D. Bakelite
Dry distillation of calcium acetate results in the formation of_________________?
A. formaldehyde
B. acetaldehyde
C. methane
D. acetone
Aldehyde and ketone have same general formula for homologous series_________________?
A. CnH2nO2n
B. CnH2n
C. CnH2nO
D. CnH2nOn+1
On heating aldehydes with Fehlings solution we get a precipitate whose colour is_________________?
A. pink
B. black
C. yellow
D. brick red
Cannizzaros reaction is not given by__________________?
A. formaldehyde
B. acetaldehyde
C. benzaldehyde
D. trimethyl acetaldehyde
Which of the following reactions may be assoclated with aldehyde and ketone ?
A. nucleophile addition
B. polymerization
C. oxidation
D. all of the above
Acetaldehyele cyanohydrin on acid hydrolysis yields___________________?
A. Tartaric acid
B. Propanoic acid
C. Lactic acid
D. Valeric acid
Cannizaros reaction takes place through the transfer of ____________________ from complex anion?
A. hydrogen ion
B. hydride ion
C. oxide ion
D. methoxide ion
Which of the following will have the highest boiling point ?
A. methanol
B. ethanal
C. propanal
D. hexanone
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