ECAT Pre Engineering Chemistry Chapter 22 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 22 Alcohols, Phenols and Ethers

Try The MCQ's Test For ECAT Chemistry Chapter 22 Alcohols, Phenols and Ethers

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ECAT Chemistry Chapter 22 Alcohols, Phenols and Ethers

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Question # 1

An alcohol with molecular formula CnH2n+1OH has a chiral carbon atom but does not react with MnO-4/H+what is the least number of carbon atoms such an alcohol could possess

Question # 2

Williamson's synthesis is used to prepare

Question # 3

Phenol is more readily soluble in

Question # 4

Methyl alcohol is not used

Question # 5

What will react differently with the two isomeric pentols, (CH3)3CCH2OH and (CH3)2CH CH2CH2OH

Question # 6

Which compound shows hydrogen bonding

Question # 7

Alcohol fermentation is brought about by the action of

Question # 8

Which of the following is an isomer of ethanol

Question # 9

Which of the following is weakly acidic in nature

Question # 10

Alcohol can be denaturated by adding:

Question # 11

Rectified spirit contains alcohol about:

Question # 12

An organic compound 'X' on treatment with acidified K2Cr2O7gives a compound 'Y' which reacts with I2and sodium carbonate to form Triodomethane. The compound 'X' is

Question # 13

The organic compounds which derivative of hydrocarbons due to oxygen is:

Question # 14

Which structure shows a tertiary alcohol

Question # 15

Which compound shows more hydrogen bonding?

Question # 16

Which statement in not correct about alcohol?

Question # 17

Which is used as an antifreeze?

Question # 18

Maximum number of active hydrogens are present in

Question # 19

Which of the following is known as wood spirit

Question # 20

Phenol is a weak acid. The correct order of acid strength of carboxylic acid, phenol and alcohol is

Question # 21

Sodium phenoxide reacts with CO2at 400 K and 4.7 atm pressure to give

Question # 22

Phenol is also known as

Question # 23

General formula of alcohol is:

Question # 24

Glucose in the presence of zymase is converted into

Question # 25

A compound is soluble in conc. H2SO4, it does not decolourise bromine in carbon tetrachloride but is oxidized by chromic anhydride in aqueous sulphuric acid within two seconds, turning orange solution to blue, green and then opaque. The original compound is

Question # 26

Ethanol can be converted into ethanoic acid by

Question # 27

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 K2Cr2O7and H2SO4. The colour changes, if the driver is drunk

Question # 28

Primary and secondary alcohols on action of red hot copper give

Question # 29

Use of ethanol as:

Question # 30

Compound X has molecular formula C10H14O and is unreactive towards mild oxidising agents. What is the structure of the compound formed by dehydration of X

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ECAT Chemistry Chapter 22 Important MCQ's

Sr.# Question Answer
1 Ethanol can be converted into ethanoic acid by
A. Hydrogenation
B. Hydration
C. Oxidation
D. Fermentation
2 Mild oxidation of glycerol with H2O2/FeSO4gives
A. Glyceraldehyde
B. Dihydroxy acetone
C. Glycerose
D. None
3 Which statement in not correct about alcohol?
A. Ethyl alcohol is heavier than water
B. Ethyl alcohol ecaporates more quickly
C. Alcohol with less number of carbon atoms is more soluble in water than alcohol with more number of carbons atoms
D. Alcohol produces H2by reaction with sodium metal
4 Ethanol is prepared in Pakistan form fermentation of:
A. Starch
B. Sugar
C. Glucose
D. Molasses
5 The only alcohol that can be prepared by the indirect hydration of alkene is
A. ethyl alcohol
B. propyl alcohol
C. isobutyl alcohol
D. methyl alcohol
6 Diethyl ether is obtained by Williamsons synthesis using
A. Ethanol + Na + C2H5Br
B. Ethanol + Mg + C2H5Br
C. Methanol + Na + CH3Br
D. Methanol + Mg + CH3Br
7 Which compound is more soluble in water?
A. C2H5OH
B. C5H5OH
C. CH3OCH3
D. n-Hexanol
8 The strongest acid among the following aromatic compound is
A. Ortho-nitrophenol
B. Para-chlorophenol
C. Para-nitrophenol
D. Meta-nitrophenol
9 Ethanol can be converted into ethanoic acid by
A. Hydrogenation
B. Hydration
C. oxidation
D. Frmentation
10 Which of the following is weakly acidic in nature
A. Alcohol
B. Phenol
C. Aidehyde
D. Amide

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