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Online Tests
ECAT Chemistry Chapter 24 Carboxylic Acid Online Test MCQs With Answers
Question # 1
In the presence of Aluminium ethoxide, aldehydes get converted into esters. The reaction is known as
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Schmidt reaction
Aldol condensation
Beckmann's rearrangement reaction
Tischenko reaction
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Question # 2
A carboxylic acid contains:
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A hydroxyl group
A carboxyl group
A hydroxyle & carboxyl group
A carboxyl &aldehyde group
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Question # 3
Primary alcohols and aldehydes are oxidized to corresponding:
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alkanes
alkenes
Alkynes
Carboxylic Acid
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Question # 4
Which are used as essences(flowers)?
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aldehydes
Ketones
alcohols
esters
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Question # 5
Amino acids contain functional groups in it:
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--CO--
--OH
---NH
2
All of these
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Question # 6
The acids obtained by the hydrolysis of fats and oils are called
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Active compound
Fatty acids
Functional group
None
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Question # 7
Optical activity is possible in
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Oxalic acid
Acetic acid
Tartaric acid
Formic acid
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Question # 8
Amino acids are buildng blocks of:
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protein
Carbohydrates
Lipids
fats
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Question # 9
The solution of which acid is used for seosoning of food ?
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Formic acid
Acetic acid
Benzoic acid
Butanoic acid
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Question # 10
Palmitic acid & steanic acid ae obtained from process of fats & oils:
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Reduction
Neutralization
oxidation
hydrolysis
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Question # 11
A carboxylic acid with one caboxyl group:
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Monocarboxylic acid
Dicarboxylic acid
Tricarboxylic acid
Polycarboxylic acid
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Question # 12
General formula of aromatic carboxyl acids
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R---------------OH
RCOOH
RCOR
ARCOOH
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Question # 13
Hydrolysis of an ester gives a carboxylic acid which on Kolbe's electrolysis yields ethane. the easter is
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Ethyl methonoate
Methyl ethanoate
Propylamine
Ethylamine
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Question # 14
The organic compounds containing Ph--OH group are called:
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Phenol
Aldehyde
Ketones
Carboxylic acids
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Question # 15
Hydrolysis of trichloromethane with aqueous KOH gives
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Potassium formate
Acetylene
Chloral
Methanol
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Question # 16
From the following values of dissociation constants of four acids which value represents the strongest acid?
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2 x 10
-2
0.02 x 10
-1
3 x 10
-4
2 x 10
-4
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Question # 17
HCOOH reacts with conc. H
2
SO
4
to produce
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CO
CO
2
NO
NO
2
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Question # 18
With amino acids ninhydrin solution gives
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Blue
Violet
Bluish violet
White
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Question # 19
Which of the following does give violet colour with neutral ferric chloride?
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Acetic acid
Salicaylic acid
Formine acid
Benzoic acid
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Question # 20
Acetamides are formed by the reaction of carboxylic acids with
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Acids
Bases
Salts
NH
3
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Question # 21
Zwitter ion is ______ ion an amino acid
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Polar
Monopular
Dipolar
Non polar
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Question # 22
Two moles of acetic acid are heated with P
2
O
5
the product formed is
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2 moles of ethyl alcohol
Formic anhydride
Acetic anhydride
2 moles of methyl cyanide
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Question # 23
Essential amino acids are those amino acids which
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Body can not synthesize
Body can synthesize
α
-amino acids
β
-amino acids
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Question # 24
Which of the following alcohols cannot be produced by treatment of aldehydes or ketones with NaBh
4
or LiAH
4
?
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1-Propanol
2-Propanol
2-Methyl2-Proponal
Ethanol
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Question # 25
In public urinals, we observe some nascent smell. This smell is due to
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Hydrolysis of urea of urine by urease of atmosphere into NH
3
and CO
2
Formation of sulphonic acid by urea of urine
Reaction of CO
2
of atmosphere with urea monoitrate in urine
Hydrogen present in air reacts with nitrogen forming NH
3
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Question # 26
Acetic acid is also named.
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Methanoic acid
Ethanoic acid
Propanic acid
Butanoic acid
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Question # 27
Acidic hydrolysis of acetamide gives
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Acetaldehyde
Acetic acid
Methyl amine
Formic acid
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Question # 28
Glacial acetic acid freezes to ice like solid it.
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07
17
27
37
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Question # 29
Heating a mixture of sodium benzoate and soda lime gives
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Methane
Benzene
Sodium bezoate
Calcium benzoate
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Question # 30
Which of the following is not a fatty acid?
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Propanoic acid
Acetic acid
Phthalic acid
Butanoic acid
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