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Aldehydes and Ketones

In base catalyzed reaction of carbonyl compound the catalyst___________________?

August 30, 2021March 18, 2019 by admin
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

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Which of the following is a symmetrical ketone___________________?

August 30, 2021March 18, 2019 by admin
Which of the following is a symmetrical ketone___________________?

A. 3 – hexanone
B. acetone
C. butanone
D. 2-pentanone

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Which one exhibits aldol condensation____________________?

August 30, 2021March 18, 2019 by admin
Which one exhibits aldol condensation____________________?

A. HCHO
B. C6H5CHO
C. Cl3CCHO
D. CH3COCH3

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Acetaldehyele cyanohydrin on acid hydrolysis yields___________________?

August 30, 2021March 18, 2019 by admin
Acetaldehyele cyanohydrin on acid hydrolysis yields___________________?

A. Tartaric acid
B. Propanoic acid
C. Lactic acid
D. Valeric acid

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Ethanal is prepared industrially by air oxidation of ethylene using palladium chloride as catalyst and _________ as promoter?

August 30, 2021March 18, 2019 by admin
Ethanal is prepared industrially by air oxidation of ethylene using palladium chloride as catalyst and _________ as promoter?

A. PdCl2
B. Cu2Cl2
C. CuCl2
D. PbCl2

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Aldehyde and ketone have same general formula for homologous series_________________?

August 30, 2021March 18, 2019 by admin
Aldehyde and ketone have same general formula for homologous series_________________?

A. CnH2nO2n
B. CnH2n
C. CnH2nO
D. CnH2nOn+1

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Formalin consists of mixture of formaldehyde methyl alcohol and water Percentage of water in it is________________?

August 30, 2021March 18, 2019 by admin
Formalin consists of mixture of formaldehyde methyl alcohol and water Percentage of water in it is________________?

A. 60%
B. 50%
C. 52%
D. 8%

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Formula of haloform is_________________?

August 30, 2021March 18, 2019 by admin
Formula of haloform is_________________?

A. HCOX
B. CX4
C. CHX3
D. CH3X

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Formaldehyde and lactose are combined to produce throat lozenges named as__________________?

August 30, 2021March 18, 2019 by admin
Formaldehyde and lactose are combined to produce throat lozenges named as__________________?

A. formamint
B. lactomint
C. aldomint
D. formalactose

Categories Aldehydes and Ketones, Chemistry Mcqs Leave a comment

Which of the following do not give aldol condensation reactions ?

August 30, 2021March 18, 2019 by admin
Which of the following do not give aldol condensation reactions ?

A. formaldehyde
B. acetaldehyde
C. diemthyl ketone
D. propionaldehyde

Categories Aldehydes and Ketones, Chemistry Mcqs Leave a comment
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