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MDCAT Chemistry Chapter 16 Alcohols and Phenols Online Test MCQs With Answers
Question # 1
Relative acidic strength of alcohol, phenol, water and carboxylie acid is
Choose an answer
Carboxylic acid > Alcohol > Phenol > Water
Carboxylic acid > Phenol > Water> Alcohol
Water > Alcohol> Phenol > Carboxylic acid
Phenol > Carboxylic acid > Alcohol> Water
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Question # 2
Formalin is used as:
Choose an answer
Fungicide
Germicide
Sterilizing of surgical instruments
All three
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Question # 3
.Both aldehydes and ketones are planar to the neighborhoods of carbonyl (C-0) group. Which one of the following bonds is distorted towards the oxygen atoms?
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pi-bond of C and O
Sigma bond of C and O
Sigma bond of C and H
Sigma bond of C and C
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Question # 4
Alcohol is less acidie than phenol due to
Choose an answer
higher ka value
Instability of alkoxide ion
stability of carbocation
Stability of phenol
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Question # 5
The rate of E1 reaction depends upon
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The concentration of substrate
The concentration of substrate as well as nucleophile
The concentration Nucleophilic
Nature of Catalyst
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Question # 6
Identify the compound, which give iodoform test
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Methanol
3- Hexanol
Methyl ketone
Propionaldehyde
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Question # 7
During esterifcation, the alcobol molecule acts as:
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Oxidizing agent
Electrophile
Reducing agent
Nucleophile
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Question # 8
The dehydration of ethyl alcohol with concentrated H2SO4 at 140°C gives
Choose an answer
Ethene
Alcohol
Diethyl ether
Carboxylic acid
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Question # 9
Which one of the following alcohol is indicated by formation of yellow crystals in lodoform tesr?
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Methanol
Ethanol
Butanol
Propanol
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Question # 10
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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Question # 11
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 # 12
When wine is put in air, it becomes sour due to
Choose an answer
Oxidation of C2H5OH
Formation of C2H5NH2
Reduction of C2H5OH
Dissolution of CO2
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Question # 13
To prepare ethane by Wurtz synthesis the suitable alkyl halide is
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Ethyl iodide
any alkyl iodide
Ethyl chloride
Methyl bromide
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Question # 14
Elimination unimolecular reactions involve
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Second order kinetics
First order kinetics
Third order kinetics
Zero order kinetics
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Question # 15
Which of the substance is not going to react the sodium metal:
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Acetic acid
Methanol
Di methyl ether
Ethanol
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Question # 16
The reaction of formaldehyde with HCN is
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Nucleophilic substitution
Electrophilic substitution
Nucleophilic addition
Free radical addition
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Question # 17
Which of the following does not give yellow precipitate with I2+ NaOH
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Acetone
Benzaldehyde
Acetildehyde
Acetophenone
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Question # 18
2-propanol on Oxidation gives
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Aldehyde
Carboxylic Acid
Ketone
Alcohol
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Question # 19
The species which are produced by heterolytic bond breaking and can act as electron pair donor
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Free radicals
Cations
Nucleophiles
electrophile
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Question # 20
Tertiary aleohols producewith acidified KMno,
Choose an answer
Ketones
Aldehydes
Malonic acid
Alkene
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