Chapter No. 13 Carboxylic Acids & Their Derivatives MCQs
1)
The function group in
Citric acid is
a) –
OH b)
– OR
c) –
COOH d)
– COOR
2)
Esters have general formula
a)
ROH b)
RCHO
c)
RCOOR d)
RCOOH
3)
The acid present in butter
is called
a)
Formic acid b) Acetic acid
c)
Propionic acid d) Butanoic acid
4)
Which one of the following
is the strongest acid?
a)
CH3COOH b)
CH2ClCOOH
c)
CHCl2COOH d) C2H5COOH
5)
Anhydrous acetic is a
crystalline, hygroscopic solid and is also known as
a) Dilute acetic acid
b) Glacial (ice like) acetic acid
c) Methanoic acid
d) None of these
6)
Acetyl chloride is formed
by the reaction of acetic acid with
a)
Thionyl chloride b) Ammonia
c)
Alcohol d)
Sodium hydroxide
7)
Acetic acid is a weak acid
because in aqueous solution it is
a) Highly ionized
b) Weakly ionized
c) Insoluble in water
d) No replaceable hydrogen
8)
Which of the following is a
monobasic acid?
a) H2SO4
b)
H2CO3
c) H3PO4
d)
CH3COOH
9)
Hydrolysis of esters in
alkaline medium is called
a)
Sponification b) Hydration
c)
Esterification d) None of these
10)
Which one of the following
does not have a carboxylic group?
a)
Benzoic acid b) Ethanoic acid
c)
Aspirin d)
Picric acid
11)
Two moles of carboxylic
acids on heating in the presence of P2O5 yields
a)
Alcohol b)
Ether
c)
Acetic acid d)
Ester
12)
Which of them is a strong
reducing agent?
a)
Formic acid b) Acetic acid
c)
Oxalic acid d)
Chloro acetic acid
13)
Methanoic acid acts as
a) Powerful oxidizing agent
b) Mild oxidizing agent
c) Powerful reducing agent
d) Mild reducing agent
14)
Between acetic acid and
formic acid, the former one is
a)
Less acidic b) More acidic
c)
Same strength d) More basic
15)
Beta hydroxyl propionic
acid is
a)
Citric acid b)
Aspartic acid
c)
Oxalic acid d)
Lactic acid
16)
Formic acid can reduce
a)
Mercuric chloride b) Tollen’s
reagent
c)
KMnO4 d)
All of these
17)
The number of H – bonds
formed per molecule of carboxylic acid are
a) 4 b)
3
c) 2 d)
1
18)
The attachment of electron
withdrawing groups result into the
a)
Increase of acidity b) Decrease of acidity
c) Increase of strength d) All
of these
19)
The firs four members of
carboxylic acid are completely soluble in water. This is due to
a)
Acidic nature b) H – bonding
c)
Polymerization d) Reduction
20)
Sodium bi carbonate when
reacts with a compound “X” as result CO2 liberates with
effervescence the compound “X” contain
a) –
OH b)
– CHO
c) X d)
– COOH
21)
The carboxylic acid which
is used for coagulating rubber latex is
a)
Ethanoic acid b) Methanoic acid
c)
Propanoic acid d) All of these
22)
Acetic acid when reacts
with chlorine in the presence of red phosphorus, the product formed is
a)
Acetyl chloride b) Methyl
chloride
c)
Methyl ester d) Chloro acetic acid
23)
Which of them has two
functional groups?
a)
Amino acid b) Salicylic acid
c)
Acetone d)
Both a & b
24)
Amino acids having two NH2
group are
a)
Acidic in nature b) Neutral in
nature
c)
Saltish in nature d) Basic in
nature
25)
The compound which occur as
zwitter ion or dipolar are
a)
Ketones b)
Aldehydes
c)
Alcohol d)
Amino acid
26)
The dipolar structure of an
amino acid is also called
a)
Basic salt b)
Acidic salt
c)
Neutral salt d) Interval salt
27)
The test used to identify
amino acid is
a)
Tollen’s test b) Fehling test
c)
Meyer’s test d) Ninhydrin test
28)
A peptide having molar mass
up to 10000 is called poly peptide while a poly peptide having molar mass more
than 10000 is called
a) Protein
b) Essential amino acids
c) Non essential amino acids
d) Acidic amino acid
29)
On heating ammonium acetate
yields
a)
Acetic acid b)
Acetamide
c)
Ether d)
Amino acid
30)
A carboxylic acid contains
a) Hydroxyl group
b) Carboxyl group
c) A hydroxyl group and carboxyl group
d) A carboxyl group and aldehydic group
31)
Long chain mono carboxylic
acid are called
________
a)
Aliphatic acid b) Aromatic acid
c)
Cyclo carboxylic acid d) None of these
32)
Common name of 1, 3
Propanedioic acid is
a)
Succinic acid b) Oxalic acid
c)
Melonic acid d) Phthalic acid
33)
Vinegar is
a) 5% solution of acetic acid in H2O
b) 50% solution of acetic acid in H2O
c) 25% solution of acetic acid in H2O
d) 10% solution of acetic acid in H2O
34)
Succinic acid contain total
carbon atoms
a) 4 b)
5
c) 3 d)
2
35)
Carboxylic acid can be
prepared from
a)
Alcohol b)
Ester
c)
Grignard’s reagent d) All
36)
In industrial preparation
of Acetic Acid from acetaldehyde manganous acetate is used
as
a) Catalyst
b) Oxidizing agent
c) To prevent oxidation of Acetic acid into peracetic acid d)
All above
37)
Which one is not the
derivative of carboxylic acid?
a)
Acid Halid b)
Amino acid
c)
Enthanamide d) Acid amide
38)
In carboxylic acid carbonyl
carbon is
hydridized
a)
SP3 b) SP2
c)
SP d)
None
39)
Which one of the following
will increase the acidity of carboxylic acid?
a)
OH b)
NO2
c)
– CN d)
Both b & c
40)
Which one will decrease the
acidity of carboxylic acid?
a)
OH b)
NH2
c)
Alkyl group d) All
41)
Which one is less acidic?
a) CH2 – COOH
│ Cl
b) Cl2 – CH – COOH
c) CH3 – COOH
d) Cl3.C.COOH
42)
Which one is more acidic?
a)
HCOOH b)
CH3COOH
c) C2H4
– COOH d) C2H7
– COOH
43)
Which have higher B.P?
a)
CH3COOH b)
CH3-CH2-CH2-OH
c)
CH3O – C2H5
d) Both a & c
44)
Carboxylic ion is
represented by how many resonating structure?
a)
3 b)
2
c)
1 d)
4
45)
Higher B.P of carboxylic
acid as compared to
alcohol
of the same m.wt is due to
a) Strong dispersion ferces
b) Strong dipole dipole interaction
c) Two H – bonding per molecule
d) All of these
46)
The greater acidity of
carboxylic acid as
compared
to alcohol is
a) Electron donating effect of – OH group
b) Electron with drawing effect of COOH gp
c) Resonance stability of carboxylic ion
d) All
47)
Which of the following
compounds on reaction with NaHCO3
liberates CO2?
a)
C2H5 – OH b) CH3 – O – CH3
c)
CH3COOH d)
CH3CONH2
48)
Acetic acid on reduction
with LiAlH4 gives
a)
Ethane b)
Ethanal
c)
Ethanol d)
Ethyone
49)
Acetic acid undergo
dehydration reaction with P2O5 and forms.
a)
Methyl acetate b) Butanoic acid
c)
Acetic anhydride d) Acetaldehyde
50)
A compound undergo
reduction with (LiAlH4) it
also dissolve in aq.NaOH from which it can be recovered by addition of HCl the compound
in
a)
Carboxylic acid b) An ester
c) An
alcohol d)
Acid anhydride
51)
The solution of which acid
is used for seasoning of food?
a)
Formic acid b) Benzoic acid
c)
Acetic acid d)
Butanoic acid
52)
Acetamide is prepared
by
a) Heating of ammonium acetate
b) Heating of Ethyl acetate
c) Amonium propionate
d) None
53)
R – CH – COO- is
called
│
NH3
a)
Zwitter ion b) Dipolar ionic form
c)
Internal salt d) All
54)
Amino acids are the
building unit of protein the
linkage
b/w Amino acid molecules is called
a)
Glycosidic linkage b) Peptide linkage
c)
Ether linkage d) All above
55)
Which of the following is
not a fatty acid?
a)
Acetic acid b)
Propionic acid
c)
Phthalic acid d) Butanoic acid
56)
Total number of amino acids
are
a)
10 b)
20
c)
30 d)
40
57)
Total number of essential
amino acids
a)
10 b)
20
c)
– 30 d)
– 40
58)
NH2
│
R
– CH – COO- is called
a)
α Amino acid b) β amino acid
c)
γ amino acid d) None
59)
The acid produced in the
sting of bees and
ants
is
a)
Acetic acid b)
Formic acid
c)
Carbonic acid d) Oxalic acid
60)
The conversion of acetic
acid to methane is an
example
of
a)
Hydration b) Dehydration
c)
Decarboxyletion d) Oxidation
61)
Which class of compound is
commonly used for the artificial flavouring in jams?
a)
Aldehyde b)
Ester
c)
Carboxylic acid d) Ketones
62)
CH3 – CH – COO-
is called
│
NH2
a)
Valine b)
Glycine
c)
Alanine d)
Proline
63)
Which of the following is
not an Amino acid?
a)
Alanine b)
Aniline
c)
Glyine d)
Aspartic acid
64)
Ethyl acetate can be
prepared by the action of _______ on carboxylic acid, in the presence
of acidic
media.
a)
Phenols b)
Formalin
c)
Pyradine d)
Alcohol
65)
Which of the following
carboxylic acid is the strongest?
a) CHF2 – CH2 – CH2 – COOH
b) CH3CH2CF2COOH
c) CH2F – CHF – CH2 – COOH
d) CH3CH2CH2COOH
66)
Which of the following will
serve as the basis
for
simple chemical test to distinguish between
CH3CH2COOH
and CH3COOHCH3?
a)
Conc. H2SO4 b) Conc. HNO3
c)
CrO3 │H2SO4
d) NaHCO3 │H2O
67)
The IUPAC nomenclature of C6H5CH
=
CHCOOH
is
a)
3 – Phenyl prop – 2 – enoic
acid
b)
Cinnamic acid
c)
Phenyl acrylic acid
d) 1 – Phynyl – 2 – ethylene carboxylic acid
68)
Which of the following
carboxylic acids has the largest acidity constant, Ka?
a)
CH3COOH b)
ClCH2COOH
c)
Cl2CHCOOH d) Cl3CCOOH
69)
Which of the following is
not a primary amine?
a)
Cyclohexylamine b) 3 – hexylamine
c)
1 – Butylamine d) Diethylamine
70)
Which statement about the
reaction of 1 – bromobutane and NH3
is incorrect?
a) The reaction specifically gives a primary amine
b) The reaction is a nucleophilic substitution
c) The reaction initially gives a primary amine
d) The reaction may lead to the formation of a quaternary ammonium salt.
71)
2 – Bromopentanoic acid can
be obtained by
a) Pentanoic acid + Br2
Light
b) Pentanoic acid + Br2 P
c) Pentanoic acid + HBr
d) Pentanoic acid + HBr Peroxides
72)
The product
obtained in the following reaction is CH3CH2COOH Br2P ?
The product
obtained in the following reaction is CH3CH2COOH Br2P ?
a) CH3CHBrCOOH
b) BrCH2CH2COOH
c) BrCH2CHBrCOOH
d) A mixture of all the above products
73)
Acetamide can be prepared
by the reaction of ammonia on
a)
Ethyl acetate b) Acetyl chloride
c)
Acetic anhydride d) All the above
74)
The products obtained in
the following reaction are CH3COOCH3 + CH3CH2OH
H
a)
CH3COOC2H5
+ CH3OH
b)
CH3CH2COOCH3
+ CH3OH
c)
A mixture of both the above
products
d)
None of the above
75)
Which of the following
reaction will give ethyl propionate?
a) 
CH3CH2CO2H
+ C2H5OH H
CH3CH2CO2H
+ C2H5OH H
b) CH3CH2CO2H + C2H5OH
OH
c) CH2CO2C2H5 + CH3I NaOC2H5
d) All the above reactions
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