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ECAT Chemistry Chapter 22 Alcohols, Phenols and Ethers Online Test MCQs With Answers
Question # 1
Which compound is more soluble in water
Choose an answer
C
2
H
5
OH
C
6
H
5
OH
CH
3
OCH
3
n-hexanol
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Question # 2
Which of the following is known as wood spirit
Choose an answer
Ethyl alcohol
Propyl alcohol
Methyl alcohol
Butyl alcohol
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Question # 3
If an electrophile attacks then ______ bond breaks first
Choose an answer
C - H
O - H
C - O
None of these
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Question # 4
Which of the following cannot be produced by acidic dehydration of alcohols?
Choose an answer
Ethers
Aldehyde
Alkyl Hydrogen sulphate
Alkene
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Question # 5
The test used for the detection of ethanol in the mouth of a drunk driver is that the drunk driver is asked to blow air from mouth into a solution of K
2
Cr
2
O
7
and H
2
SO
4
. The colour changes, if the driver is drunk
Choose an answer
From orange to green
From pink to green
From orange to colorless
From pink to colorless
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Question # 6
Industrial alcohol may be denaturated by the addition of
Choose an answer
Methyl alcohol
Acetone
Pyridine
Any of the above reagent
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Question # 7
Hydrolytic coversion of sucrose into glucose and fructose is known as
Choose an answer
Induction
Inversion
Insertion
Inhibition
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Question # 8
Williamson's synthesis is used to prepare
Choose an answer
Diethylether
Phenolphthalein
Hydrogenation
Bakelite
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Question # 9
Nitration of phenol gives
Choose an answer
o-nitrophenol
p-nitrophenol
m-nitrophenol
Both o and p-nitrophenol
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Question # 10
To prepare ethanol by fernentation the optimum temp. is
Choose an answer
10 - 20°C
25 - 30°C
20°C
35°C
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Question # 11
According to Lewis concept ethers behave as:
Choose an answer
Acid
Base
Acid as well as a base
None of them
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Question # 12
An organic compound will decolorise dill acidified (aq) KMnO
4
on warming, but will not decolorise bromine water. What is the compound
Choose an answer
KMnO
4
Ethanol
Ethane
CH
3
CH
2
Cl
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Question # 13
Which alcohol gives only one oxidation product when wormed with dil acidified K
2
Cr
2
O
7
Choose an answer
Butan-1-ol
Butan-2-ol
2-methyl propan-1-ol
2-methyl propan-2-ol
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Question # 14
When ethylene glycol is heated with acidified potassium permanganate, the main organic compound obtained is
Choose an answer
Oxalic acid
Glyoxal
Formic acid
Ethanol
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Question # 15
Which the increase in carbon number of solubility of an alcohol
Choose an answer
Increases
Decreases
Remains unaffected
None of these
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Question # 16
Which structure shows a tertiary alcohol
Choose an answer
CH
3
CH
2
OH
(CH
3
)
2
CHOH
(CH
3
)
3
COH
CH
2
OH
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Question # 17
I-Phenylethanol can be prepared by reaction of benzaldehyde with
Choose an answer
Methyl iodide an Magnesium
Methyl bromide
Methyl bromide and AIBr
3
C
2
H
5
l and Mg
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Question # 18
Which compound is called a universal solvent?
Choose an answer
H
2
O
CH
3
OH
C
2
H
5
OH
CH
3
----O---CH
3
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Question # 19
Propanone is the product obtained by dehydrogenation of
Choose an answer
2-Propanol
1-Propanol
Isobutyl alcohol
Propanethoil
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Question # 20
When phenol is distilled with zinc dust. It is reduced to
Choose an answer
Benzene
Benzaldehyde
Toluene
Hexanol
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Question # 21
Dehydration of ethyl alcohol yields
Choose an answer
Aldehyde
Ketone
Acid
Alkene
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Question # 22
Methyl alcohol is not used
Choose an answer
As a solvent
A an anti-freezing agent
As a substitute for petrol
For denaturing of ethyl alcohol
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Question # 23
The organic compounds which derivative of hydrocarbons due to oxygen is:
Choose an answer
Phenol
Alcohol
Alkyl halide
Either
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Question # 24
Methanol is prepared from CO and H
2 using catalyst:
Choose an answer
ZnO
Cr
2
O
3
Pt
Ni
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Question # 25
Ethyl alcohol may be identified by
Choose an answer
Ring test
Iodoform test
Tollen's test
Bazeyer's test
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Question # 26
Oxidation of methyl alcohol gives
Choose an answer
Formaldehyde
Acetone
Ester
Acid
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Question # 27
The strongest acid among the following aromatic compound is
Choose an answer
Ortho-nitrophenol
Para-chlorophenol
Para-nitrophenol
Meta-nitrophenol
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Question # 28
Phenol is also known as
Choose an answer
Acetic acid
Carbolic acid
Tararic acid
Trichloroacetic acid
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Question # 29
In Lucas test teriary alcohol make an oily layer
Choose an answer
Immediately
In 10 mins
On heating
Not
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Question # 30
Which statement in not correct about alcohol?
Choose an answer
Ethyl alcohol is heavier than water
Ethyl alcohol ecaporates more quickly
Alcohol with less number of carbon atoms is more soluble in water than alcohol with more number of carbons atoms
Alcohol produces H
2
by reaction with sodium metal
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Question # 31
Either, an organic compound has close resemblance in structure and thus a derivative of:
Choose an answer
Water
Oxides of lithium
Oxides of magnisium
Oxides of aluminium
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