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.Management Sciences
Category: Aldehydes and Ketones
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
In base catalyzed reaction of carbonyl compound the catalyst___________________?
A. increases the nucleophilic character of reagent
B. increases electrophilic character of carbonyl compound
C. acidic character of reagent
D. both a and b
Iodoform test can be used to distinguish between_________________?
A. ethanol and methanol
B. acetaldehyde and methanal
C. acetone and diethyl ketone
D. all of the above
Which of the following reaction is not shown by ketones ?
A. reaction with HCN
B. reaction with NaHSO3
C. reaction with 2 4 dinitrophenyl hydrazine
D. reaction with Fehling solution
Which of the following is not a use of acetaldehyde ?
A. formation of phenolic resins
B. formation of mirror
C. antiseptic inhalant
D. formation of throat lozenges
The carbon atom of carbonyl group is__________________?
A. sp hybridized
B. sp2 hybridized
C. cp3 hybridized
D. dsp2 hybridized
Ncleophilic addition reactions are catalysed__________________?
A. Acid
B. Base
C. Both A and B
D. None
Which of the following compounds will react with Tollens reagent ?
A. CH3-CHO
B. CH3-CH-CH3
C. CH3-COOH
D. CH3-CO-CH2-CH3
Which of the following compounds has the empirical formula CH2O and reacts with sodium hydroxide ?
A. carbonic acid
B. ethanol
C. acetic acid
D. methanoic acid
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