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MDCAT Chemistry Chapter 15 Alkyl Halides Online Test MCQs With Answers
Question # 1
Acetone reacts with HCN to form a cyanohydrin. It is an example of
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Nucleophilic addition
Electrophilic substitution
Electrophilic addition
Nucleophilic substitution
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Question # 2
The reagent used to distinguish between ethanol and propanal is
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I2/ NaOH
Benedict's reagent
LiAIH
sodium nitroprusside
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Question # 3
The acidity of phenol is due to its
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Nature of Benzene
Double bond in benzene ring
Natute of phenoxide ion
Hydroxyl group
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Question # 4
Primary, secondary aad tertiary alcohols can be identified and distinguished by
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Lucas test
lodoform test
Baeyer's test
Silver mirror test
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Question # 5
Which of the follwing dnes not give brick red precispitate wits Fehling's solution
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Acetaldehyde
Formalin
prorionaldehyde
Acetone
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Question # 6
ln ethyl alcohol, the bond that undergoes heterolytic cleavage most readily is
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C-C
C-O
C-H
O-H
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Question # 7
A compound z' decolorizes bromine water and produces white ppt. The compound 'z'is
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Alkane
Alcohol
Phenol
Benzene
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Question # 8
Which of the following ketone will not give iodoform test
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Methyl isopropyl ketone
Dimethyl ketone
Ethyl isopropyl ketone
2-hexanone
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Question # 9
Phenol can be diatingushed from ethyl alcohol by all of the following reagents except
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lodoforrn test
Na
Br2 /H2O
NaOH
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Question # 10
The synthesis of ethene from ethyl alcohol is a reaction
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Dehydration
Polymerization
Addition
Substitution
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Question # 11
Reactivity of carbonyl compounds is due to
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Electrophilic carbon
Less stearic hindrance
Unsaturation of Co
Polarity of bond
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Question # 12
Which of the following undergoes easy dehydration?
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3-MethyIbutan-2-ol
Ethanol
2.Methylpropan-2-ol
Methanol
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Question # 13
Which will not react with phenol
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NaOH
Br2
KMn04/OH-
Na
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Question # 14
CH3CH2CH2OH--------A---------B Here B is
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Propyne
Propanal
Propene
Propane
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Question # 15
The alcohol that does not form curbonyl compound on oxidation
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iso-butyl alcohol
neo pentyl alcohol
Ethanol
ter-butyl alcohol
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Question # 16
Tertiary alcohols have alpha bydrogens
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1
Zero
2
3
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Question # 17
Which of the following alcohol is more soluble in H2O
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Propanol
Butanol
Pentanol
Hexanol
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Question # 18
An electron with drawing group attached to e-position in phenol
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makes it basic
Stabilises the phenoxide ion
decreases its basicity
allows it to precipitate in aqueous solution
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Question # 19
Which one of the following groups is indicated when HCI is formed by reaction of ethanol with phosphorous pentachloride?
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Amino group
Halide group
Hydroxyl group
Hydride group
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Question # 20
Which one of the followings is resistant to oxidation under normal conditions
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Methyl alcohol
Acetaldehyde
Ethyl alcohol
Acetone
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