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Aldehydes and Ketones - 2
1.
The formula of lactic acid is __________________.
a) CnH
2
nO
b) NH
2
NHCONH
2
c) CH
3
CH(OH)-COOH
d) PdCl
2
,CuCl
2
2.
The reaction of aldehydes possessing
a
-hydrogen atom with cold dil solution of alkali is called ______________.
a) Metaformaldehyde
b) Condensation reaction
c) Aldehyde, Ketone
d) Aldol condensation
3.
The reaction of aldenhydes having no alpha hydrogen with 50% aqueous NoaH is called ______.
a) Condensation reaction
b) Cannizzaros reaction
c) Alcohols
d) Carboxylic acid
4.
Haloform reactions are undergone by only _______________ and _______________.
a) Metaformaldehyde, Paraldehyde
b) Acetic acid, Formic acid
c) Aldehyde, Ketone
d) Acetahyde, Methyl ketone
5.
Fehling solution test is used to distinguish _____________ from ___________.
a) Aldehyde, Ketone
b) Formic acid, acetic acid
c) Carboxylic acid, amide
d) Acetahyde, Methyl ketone
6.
Formaldehyde and acetaldehyde polymerise in the presence of dil H
2
SO
4
to give __________ and ___________.
a) Formic acid, acetic acid
b) Acetahyde, Methyl ketone
c) Metaformaldehyde, Paraldehyde
d) Acetic acid, Formic acid
7.
The reaction in which aldehydes and ketones react with ammonia derivatives in the presence of acid catalyst followed by elimination of water is called __________.
a) PdCl
2
,CuCl
2
b) Cannizzaros reaction
c) Cyanohydrin
d) Condensation reaction
8.
The formula of semicarbazide is ________________.
a) CnH
2
nO
b) PdCl
2
,CuCl
2
c) NH
2
NHCONH
2
d) CH
3
CH(OH)-COOH
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