Aldehyde and ketone have same general formula for homologous series_________________?
A. CnH2nO2n
B. CnH2n
C. CnH2nO
D. CnH2nOn+1
Chemistry Mcqs
Formalin consists of mixture of formaldehyde methyl alcohol and water Percentage of water in it is________________?
Formalin consists of mixture of formaldehyde methyl alcohol and water Percentage of water in it is________________?
A. 60%
B. 50%
C. 52%
D. 8%
Formula of haloform is_________________?
Formula of haloform is_________________?
A. HCOX
B. CX4
C. CHX3
D. CH3X
Formaldehyde and lactose are combined to produce throat lozenges named as__________________?
Formaldehyde and lactose are combined to produce throat lozenges named as__________________?
A. formamint
B. lactomint
C. aldomint
D. formalactose
Which of the following do not give aldol condensation reactions ?
Which of the following do not give aldol condensation reactions ?
A. formaldehyde
B. acetaldehyde
C. diemthyl ketone
D. propionaldehyde
Which of the following reagents will react with both aldehydes and ketones ?
Which of the following reagents will react with both aldehydes and ketones ?
A. Grignard reagent
B. Tollens reagent
C. Fehlings reagent
D. Benedicts reagent
Which of the following reactions may be assoclated with aldehyde and ketone ?
Which of the following reactions may be assoclated with aldehyde and ketone ?
A. nucleophile addition
B. polymerization
C. oxidation
D. all of the above
Acetone reacts with HCN to form a cyanohydrin. It is an example of________________?
Acetone reacts with HCN to form a cyanohydrin. It is an example of________________?
A. electronphilic addition
B. electrophilic substitution
C. nucleophilic addition
D. nucleophilic substitution
Formalin is ___________ solution of formaldehyde in water?
Formalin is ___________ solution of formaldehyde in water?
A. 10%
B. 20%
C. 40%
D. 60%
The carbon atom of carbonyl group is__________________?
The carbon atom of carbonyl group is__________________?
A. sp hybridized
B. sp2 hybridized
C. cp3 hybridized
D. dsp2 hybridized