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

00:00
Question # 1

denaturing of alcohol is done by adding methanol in ethanol:

Question # 2

Rectified spirit contains alcohol about:

Question # 3

When ethylene glycol is heated with acidified potassium permanganate, the main organic compound obtained is

Question # 4

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 # 5

Which bond shows maximum hydrogen bonding with water?

Question # 6

Which of the following is produced when an aqueous solution of butan-2-ol is refluxed with dil acidified KMnO4

Question # 7

Ethyl alcohol may be identified by

Question # 8

Which is used as an antifreeze?

Question # 9

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

Question # 10

Rectified spirit contains alcohol about

Question # 11

Which compound is more soluble in water

Question # 12

Which one of the following correctly describes the acid properties of phenol

Question # 13

In Lucas test teriary alcohol make an oily layer

Question # 14

Which isomers of C5H11OH gives, on dehydration, the greatest number of different alkenes

Question # 15

Alcohol can be denaturated by adding:

Question # 16

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 # 17

I-Phenylethanol can be prepared by reaction of benzaldehyde with

Question # 18

Which one is used as a fuel for internal combustion engines in many European countries and Brazil

Question # 19

Use of ethanol as:

Question # 20

Phenols are derivative of:

Question # 21

The strongest acid among the following aromatic compound is

Question # 22

Which of the following groups will increase the acidity of phenol?

Question # 23

Carbolic acid is the other name for

Question # 24

The reaction of aromatic acyl chloride and phenol in the presence of a base NaOH or pyridine is called

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

Phenol gives ---------- Colour with neutral FeCl3solution

Question # 27

Picric acid is

Question # 28

Which one of the following reacts immediately with conc. HCI in the presence of ZnCI2

Question # 29

Alcohols are derivatives of:

Question # 30

The boiling point of glycerol is more than propanal because of

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ECAT Chemistry Chapter 22 Important MCQ's

Sr.# Question Answer
1 Phenols are derivative of:
A. Alkanes
B. Alkenes
C. Alkynes
D. Benzene
2 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
A. 5
B. 6
C. 7
D. 8
3 Which compound shows hydrogen bonding
A. C2H6
B. C2H5CI
C. CH3- O - CH3
D. C2H5OH
4 denaturing of alcohol is done by adding methanol in ethanol:
A. 10%
B. 20%
C. 30%
D. 40%
5 Alcohols of low molecular weight are
A. Soluble in water
B. Soluble in water on heating
C. Insoluble in water
D. Insoluble in all solvents
6 Baukelite is a polymer obtained from two monomers
A. Phenol and ethanol
B. Phenol and methanol
C. Phenol and methanal
D. Phenol and acetone
7 Which of the following compound is known as oil of winter green?
A. Phenyl benzoate
B. Phenyl salicylate
C. Phenyl acetate
D. Methyl salicylate
8 Which alcohol gives only one oxidation product when wormed with dil acidified K2Cr2O7
A. Butan-1-ol
B. Butan-2-ol
C. 2-methyl propan-1-ol
D. 2-methyl propan-2-ol
9 Rectified spirit contains alcohol about
A. 80%
B. 85%
C. 90%
D. 95%
10 Which compound has the maximum repulsion with water?
A. C6H6
B. C2H5OH
C. CH3CH2CH2OH
D. CH3----O---CH3

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