CHAPTER # 11 Alcohols Phenols and Ethers MCQs
1.
Which one of the following
is termed as benzyl alcohol?
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a) C6H5OH
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b) C6H5CH(OH)2
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c) C6H5CH2OH
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d) None
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2.
Which one of the following
is also known as lactic acid?
a)
3-hydroxy propanioc acid
b)
2-hydroxy propanioc acid
c)
2-hydroxy butanoic acid
d)
3--hydroxy butanoic acid
3.
Which one of the following
is also known as tartaric acid?
a)
2,3-dihydroxy butanedioic
acid
b)
2,2-dihydroxy butanedioic
acid
c)
2,3-dihydroxy butanioc acid
d)
2,2-dihydroxy butanioc acid
4.
Water gas heated at 450˚C
and 200 atm pressure in the presence of
ZnO+Cr2O3 will
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produce
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a) Methanal
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b) Methanol
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c) Carbonic acid
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d) Methane
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5.
The residue obtained after
the crystallization of sugar from
concentrated sugar cane juice is
called________
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a) Mother liquor
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b) Filtrate
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c) Extract
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d) Molasses
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6.
The formula of starch
is___________
a) C12H22O11 b) C6H9O5
c) C6H10O5 d)
C6H12O6
7.
The process of fermentation
of starch involve many enzymes, the
sequence of enzyme used are____________
a)
Diastase-maltase-zymase
b)
Zymase-maltase-zymase
c)
Maltase-diastase-zymase
d)
Diastase-zymase-maltase
8.
The rectified spirit
contain_________
a)
12% alcohol b) 90% alcohol
c)
91% alcohol d) 100% alcohol
9. K2Cr2O7/H2SO4
generate___________
a)
Oxygen b) Hydrogen
c)
Nascent oxygen [O] d)Nascent hydrogen [H]
10.
The oxidation of isopropyl
alcohol will yield____________
a)
Propane b)
Propanol
c)
Propanone d)
Propanoic acid
11.
Which one is primary
alcohol ?
a)
Buten-2ol
b)
Propan-2-ol
c)
Butan-1-ol
d)
2,3-Dimethythexane-4-ol.
12.
Action of nitrous acid on
ethylamine gives
a) C2H6 b)
C2H5OH
c) C2H5OH
and C2H4 d)
C2H5OH and NH3.
13.
Ethyl alcohol is
industrially prepared from ethylene by
a)
Permanganate oxidation
b)
Catalytic reduction
c)
Absorbing in H2SO4
followed by hydrolysis
d)
Fermentation.
14.
Final product formed on
reduction of glycerol by hyddriodic acid is
a) Propane b) Propanoic acid
c) Propene d) None of these
15.
Phenol on treatment with
cone. HNO3 gives
a) Picric acid b) Styphinic acid
c) Both d) None
16.
Alcohols are
a)
Basic b) Strong acid
c)
Amphatere d) Neutral
17.
The formula of wood spirit
is ?
a) CH3COOH b) CH3OH
c) C2H5OH d) None of these
18.
Ethanol containing some
methanot is called
a)
Absolute spirit b) Rectified
spirit
c)
Power alcohol d) Methylated spirit
19.
Glyccrol is a
a)
Primary alcohol b) Monohydric
alcohol
c)
Secondary alcohol d) Tribydric
alcohol.
20.
Glyccrol can be obtained
from
a)
Fats b) Propyiene
c)
Both d) None
21.
The enzyme which can
catalyse the conversion of glucose to ethanol is
a)
Zymase b)
Invertase
c) Maltase d) Diastase.
22.
Hydrolytic conversion of
sucrose into glucose and fructose is
known as
a) Induction b) Inverslon
c)
Insertion d)
Inhibition.
23.
Rectified spirit is a
mixture of
a)
95% ethyl alcohol +5% water
b)
94% ethyl alcohol +4.53%
water
c)
94.4% ethyl alcohol + 5.43%
water
d)
95.87% ethyl alcohol +4.13%
water
24.
Which of the following is
not a characteristic of alcohol ?
a)
They are lighter than water
b)
Their boiling point rise
fairly uniformly with rising molccular weight
c)
Lower members are insoluble
in water and organic solvents but the solubility regulary increase with
molecular mass
d)
Lower members have a
pleasant smell and burning taste, higher members are colouriess and tasteless.
25.
Alcohola of low molecular
weight are
a)
Soluble in water
b)
Soluble in water on heating
c)
Insoluble in water
d)
Insoluble in all solvents
26.
Which of the following can
work as a dehydrating agent for alcohol ?
a) H2SO4 b) AI2O3
c) P2O5 d)
AII.
27.
Alcohols reacts with
Grignard reagent to form
a) Alkanes b) Alkenes
c) Alkynes d) AII.
28.
Alcohol fermentation is
brought about by the action of
a) CO2 b) O2
c) Invertase d) Yeast.
29.
Amongst the following
phenols which is most acidic?
a)
Pieric acide b) 2-Nitrophenol
c) 2,4Dinitrophenol d) m-Nitrophenol.
30.
Which of the following
groups will increase the acidity of
phenol ?
a)
–NO2 b) –CN
c)
–X(halogens) d) AII.
31.
Which is used as an
antifreeze ?
a) Glyeol b) Ethyl alcohol
c) Water d) Methanol
32.
Baeyer's reagent is
a)
Alkaline KMnO4 b)
Ammonical AgNO3
c)
Ammonial CuSO4 d)
CaSO2/Ca(OH)2
33.
The reaction between
alcohol and carboxylic acids is called
a) Esterification b) Hydrolyais
c) Saponification d) Hydrogenation
34.
Alcoholic beverages are
made of
a) Ethanol b) Acetic acid
c) Formic acid d) None of these
35.
Electrophilic substitution
in phenol generally occurs at
a)
O- and P-position
b)
Metapositions
c)
Only at ortho positions
d)
Only at para position
36.
Phenol is more readily
soluble in
a)
dil. HCl
b)
Both NaOH and HCl
c)
NaOH sol
d)
Sodium bicarbonate
solution.
37.
The order of reactivity of
halogen acids for reaction with C2H5OH is
a)
HCl > HBr > HI b) HI >
HBr > HCl
c)
HBr > HI > HCl d) HBr >
HCl > HI.
38.
The reaction of Ethanol
with H2SO4 does not give
a)
Ethylene
b)
Diethyl either
c)
Acetylene
d)
Ethyl hydrogen sulphate
39.
Which one of them is a
monohydric alcohol?
a)
CH3CH(OH)2 b) CH3C(OH)3
c) C2H5OH
d)
None of these
40.
Glycol is alcohol
a)
Monohydric b) Dihydric
c)
Trihydric d)
Both a & b
41.
Wood Naphtha is the
commercial name of
a)
Ethyl alcohol b) Aldehyde
c)
Methyl alcohol d) Acetic acid
42.
Ethyl Alcohol is denatured
by adding
a) CH3OH & CH3COOH
b) CH3COOH & CH3COCH3
c) CH3OH & Pyridine
d) None of these
43.
Methylated spirit is
a) Pure methyl alcohol
b) Methyl alcohol containing water
c) Methanol containing methanal
d) Ethanol containing methanol
44.
Alcohol reacts with
carboxylic acids, acid an hydrides and acid halides to form
a) Ether b)
Ketone
b) Esters d)
Aldehyde
45.
Strongly acidic solution of
Na2Cr2O7 is required for the oxidation of
a)
Primary alcohol b) Secondary
alcohol
c)
Tertiary alcohol d) All of these
46.
Low temperature and excess
of Alcohol favors the formation of
a)
Paraffins b)
Olefins
c)
Ether d)
Esters
47.
An alcohol produced in the
manufacture of soap is
a) Ethanol b)
Propanol
c)
Glycerol d)
Glycol
48.
The formation of
Acetaldehyde from ethanol is called
a) Oxidation b)
Reduction
c)
Addition d) Substitution
49.
Denatured Alcohol is known
as
a) Absolute alcohol b) Wood
spirit
c)
Methylated spirit d) Vinegar
50.
Which one of the following
will not take place if 1 – Propanol is under test?
a) The formation of H2 when sodium is added to it
b) The formation of 1 – bromopropane when reacts with NaBr and
concentrated H2SO4
c) The formation of sweet smelling compound when reacts with a
mixture of CH3COOH and concentrated H2SO4
d) The formation of yellow colored product when phenyl hydrazine is
added to it
51.
Bakelite plastic is formed
by the polymerization of
a) Phenol b)
Acetylene
c)
Ethane d)
o/p methylol phenol
52.
Acidified potassium
dichromate is also called
a) Chromic acid b) Acetic acid
c)
Iodic acid d)
Hydrochloric acid
53.
Passing vapors of phenol
over heated Zinc gives
a) Benzene b)
Acetic acid
c)
Benzoic acid d) Benzaldehyde
54.
Phenol reacts with dilute
HNO3 in the presence of concentrated H2SO4 yields
a) o/p nitro phenol b) o –
nitro phenol
c) p
– nitro phenol d) None of these
55.
Which of the following is
not an explosive?
a) Picric acid b)
TrinitroBenzene
c)
Trinitrotoluene d) Nitrobenzene
56.
Sodium salt of benzene
sulphonic acid on fusion with caustic soda gives
a) C6H5OH b)
C6H6
c) C6H5COOH d)
C6H5CHO
57.
Ether is soluble in
a) Water b)
Dil HCl
c)
Conc. KOH d) Conc. H2SO4
58.
By accepting a proton,
oxygen atom of the Ether forms
a) Carbonium ion b)
Carbon ion
c)
Oxonium ion d) Oxide ion
59.
Williamson’s synthesis is
used to prepare
a) Alcohols b)
Ethers
c)
Esters d)
Aldehydes
60.
Wax contains
a) – OH Group b) – CHO Group
c)
Ketonic Group d) Ester
Group
61.
Phenol reacts with Bromine
water to form
a) Picric acid b)
TNT
c)
Tribromo phenol d) Toluene
62.
Which one is methoxy
methane?
a) Olefins b)
Paraffins
c)
Dimethyl ether d) Dimethyl
ketone
63.
Alcohol reacts with an
organic acid to yield
a) An ester b)
Ketone
c)
Alkyl halides d) Ether
64.
The conversion of ethyl
alcohol into acetaldehyde is called
a) Reduction b)
Addition
c)
Oxidation d) Substitution
65.
Diethyl ether is soluble
in
a) Water b)
Dil HNO3
c)
Conc. H2SO4 d) None of these
66.
Paraffins dissolve in
a) Water b)
Acid
c)
Methyl alcohol d) Benzene
67.
Phenol and benzyl alcohol
can be distinguish by using
a) dil HCl b)
Baeyer’s test
c)
Aqueous bromine d) Tollen’s test
68.
Which one can be used to
differentiate between phenol and methyl alcohol?
a) Aqueous Br2
b) Na2Cr2O7 in dil H2SO4
c) Aqueous NaCl
d) Both a & b
69.
Which one attack easily on
phenol ring
a) Electrophile b) Nucleophile
c)
Acid d)
None of these
70.
Ethers have no hydrogen
bonding but they show weak H – bonding when dissolve in
a) Alkane b)
Formaldehyde
c)
Water d)
Kerosene oil
71.
Alkoxide ion is a powerful
a) Base b) Acid
c)
Salt d)
None of these
72.
Alkoxide ion is
a) A powerful acid b) Electrophile
c)
Nucleophile d) All of these
73.
The test which is used to
distinguish between primary, secondary and tertiary alcohols
a) Lucas Test b)
Iodoform test
c)
Benedicts test d) Baeyer’s test
74.
Phenol is weaker acid than
a) Water b)
Organic acid
c)
HX d)
Both a & b
75.
Methyl alcohol can cause
_______
a) Cancer b)
Blindness
c)
Aneimia d)
None
76.
Ethyl alcohol is produced
on commercial scale
by
the biological break down of ________
a) Starch b) Minerals
c)
Cellulose d)
None of these
77.
CH3OH and C2H5OH
are highly miscible with water because they exhibits ________
a) Ionic bonding b) Covalent bonding
c)
Hydrogen bonding d) None of these
78.
Alcohols may be converted
to the corresponding
______ by actions of halogen acids in the presence of ZnCl2.
a) Aldehydes b)
Alkyl halides
c)
Acyl halides d) None of these
79.
During the dehydration of
alcohols, relatively high temperature and moderate
alcohol
concentration
yield the corresponding
_______
a) Ether b)
Olefin c)
Paraffin d)
None
80.
Isopropyl alcohol on
oxidation gives ______
a) Ether b)
Acetone
c)
Ethylene d)
Acetaldehyde
81.
Rectified spirit contains
______ % alcohol.
a) 95.6 b) 75.0
c)
100.0 d)
85.4
82.
Primary, secondary and
tertiary alcohols may
be
distinguished by using _______
a) Fehling’s solution b) Victor Meyer test
c)
Hofmann set d) Beilstein test
83.
In cold countries glycerol
is added to water in car radiators as it helps to
________
a) Bring down the specific heat of water
b) Lower the freezing point
c) Reduce the viscosity
d) Make water a better lubricant
84.
Phenol can be converted
into p
hydroxybenzaldehyde
by
a) Friedel crafts reaction
b) Gattermann synthesis
c) Hauban-Hoesch reaction
d) None of the above
85.
Phenol on treatment with
excess of bromine
water give
a)
O – bromophenol
b)
P – bromophenol
c)
M – bromophenol
d)
2, 4, 5 –
tribromophenol
Can you please update a key for these MCQs? Today right now please I have a test tomorrow! Please please
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