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Online Tests
ECAT Chemistry Chapter 24 Carboxylic Acid Online Test MCQs With Answers
Question # 1
Acetic Acid is obtained from:
Choose an answer
Red out
Vinegar
Butter
Milk
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Question # 2
Boiling point of acetic acid is
°C:
Choose an answer
116
117
118
119
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Question # 3
Compounds containing cyanide group (.........C=H) are called:
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Nitrides
Nitrites
Nitriles
Cyanides
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Question # 4
Acetic acids react with PCI5 giving:
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Acetamide
Acetyl chloride
Alcohol
Ether
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Question # 5
Carboxylic acids on complete reduction in the presence of Hi and red phosphorus gives:
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Esters
Alcohols
Alkanes
Aldehydes
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Question # 6
Acyl halide is formed by reacting PCl
5
with
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Alcohol
Ester
Amide
Both carboxylic acids as well as esters
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Question # 7
Lower carboxylic acids are soluble in water due to
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Low molecular weight
Hydrogen bonding
Dissociation into ions
Easy hydrolysis
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Question # 8
Fatty acids are:
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Allphatic monocarboxylic acids
Dicaroxylic acids
Tricarboxylic acids
Tetracarboxylic acids
Poly carboxylic acids
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Question # 9
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 # 10
Acetic anhydride is obtained form acetyl chloride by the reaction of
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P
2
O
5
H
2
SO
4
CH
3
COONa
CH
3
COCH
3
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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
Hydrolysis of trichloromethane with aqueous KOH gives
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Potassium formate
Acetylene
Chloral
Methanol
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Question # 13
When propanamide reacts with Br
2
and NaOH then which of the following compounds is formed?
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Ethyl alcohol
Propyl alcohol
Propyl amine
Ethylamine
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Question # 14
Aromatic carboxylic acids have carboxyl group attached to group :
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Alkyl group
Aryl group
Phenyl group
Benzyl group
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Question # 15
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Question # 16
Palmitic acid & steanic acid ae obtained from process of fats & oils:
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Reduction
Neutralization
oxidation
hydrolysis
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Question # 17
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 # 18
Carboxylic acids are reduced to in presence of NaAIH
4
Choose an answer
Esters
Acetyl chloride
alcohol
Aldehydes
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Question # 19
Vinegar is dilute solution of:
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Acitic acid
Formic acid
Butyric acid
Propionic acid
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Question # 20
Choose an answer
Acidic amino acid
Basic amino acid
Neutral amino acid
None of these
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Question # 21
Amino acids contain functional groups in it:
Choose an answer
--CO--
--OH
---NH
2
All of these
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Question # 22
Boiling point of acetic acid is
o
C
Choose an answer
116
117
118
119
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Question # 23
Formic acid is obtained when
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Calcium acetate is heated with conc.H
2
SO
4
Calcium formate is heated with calcium acetate
Glycerol is heated with oxalic acid
Acetaldehyde is oxidized with K
2
Cr
2
O
7
and H
2
SO
4
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Question # 24
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RCH(CH
3
)CO
2
H + CH
3
OH
RCH(CH
3
)CO
2
H + HCO
2
H
RCH(CH
3
)OH + CO
2
RCH(CH
3
)OH + HCO
2
H
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Question # 25
Formic acid is given names from Latin word a "formic" which means:
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Red out
Vinegar
butter
Milk
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Question # 26
In public urinals, we observe some nascent smell. This smell is due to
Choose an answer
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 # 27
CH
3
CH
2
COOH is also named as:
Choose an answer
Propionic acid
Propanoic acid
Acetic Acid
Both (a) and (b)
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Question # 28
A compound X has all of the following properties: It is a liquid at room temperature and atmospheric pressure; It does not mix completely with water; It does not decolorise acidified potassium manganate
What could X be
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Ethane
Ethanoic acid
Ethanol
Ethyl ethanoate
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Question # 29
What is the structure of the ester formed from propanoic acid and ethanol
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Question # 30
Given below are some statements concerning formic acid, which of them is true?
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It is a weaker acid than acetic acid
It is a reducing agent
When its calcium salt is heated, it forms a ketone
It is an oxidizing agent
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Question # 31
Common names of carboxylic acids are given by then:
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Source
Person discovered
place
habit
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