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

I-Phenylethanol can be prepared by reaction of benzaldehyde with

Question # 2

Ethanol can be converted into ethanoic acid :

Question # 3

Which of the following compound is known as oil of winter green?

Question # 4

An organic compound will decolorise dill acidified (aq) KMnO4on warming, but will not decolorise bromine water. What is the compound

Question # 5

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

Question # 6

The organic compounds which are derivative of hydrocarbons of oxygen are:

Question # 7

Maximum number of active hydrogens are present in

Question # 8

Rectified spirit contains alcohol about

Question # 9

Oxidation of 2-propanol gives

Question # 10

Alcohals can be distinguished using test:

Question # 11

Ethanol is prepared in Pakistan form fermentation of:

Question # 12

Which compound contains - OH in their molecule

Question # 13

Ethyl alcohol is industrially prepared from ethylene by

Question # 14

Alcohols, phenols and ethers may be considered as derivative of

Question # 15

which enzyme is not involved in the fermentation of starch ?

Question # 16

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

Question # 17

The boiling points of alcohols are higher than the corresponding alkanes, This is because

Question # 18

Which alcohol gives only one oxidation product when wormed with dil acidified K2Cr2O7

Question # 19

Which is used as an antifreeze?

Question # 20

Alcohol reacts with halogen acid to produce

Question # 21

Concentration of rectified spirit is:

Question # 22

C2H5OH can be differentiated from CH3OH by

Question # 23

During dehydration of alcohols to alkenes by heating with conc. H2SO4, the initial step is

Question # 24

How many alcohol (including both structural isomers and stereoisomers) can have the molecular formula C4H10O

Question # 25

According to Lewis concept ethers behave as:

Question # 26

Phenol is heated with CCl4and alkaline KOH when salicylic acid is produced.The reaction is known as

Question # 27

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

Question # 28

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

Question # 29

To prepare ethanol by fernentation the optimum temp. is

Question # 30

Which compound shows hydrogen bonding

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ECAT Chemistry Chapter 22 Important MCQ's

Sr.# Question Answer
1 Which compound does not show hydrogen bonding with water
A. CH3OH
B. C2H5OH
C. CH3- O - CH3
D. C6H5OH
2 Dehydration of glycerol give
A. Propane
B. Propene
C. Acrolein
D. Benzene
3 Which of the following groups will increase the acidity of phenol?
A. -NO2
B. -CN
C. -X (halogens)
D. All
4 Primary and secondary alcohols on action of red hot copper give
A. Aldehydes and ketones respectilvely
B. ketones and aldehydes respectively
C. Only aldehydes
D. Only ketones
5 Ethyl alcohol prepared during fermentation is pure:
A. 20%
B. 10%
C. 11%
D. 12%
6 Methanol is prepared from CO and H2 using catalyst:
A. ZnO
B. Cr2O3
C. Pt
D. Ni
7 An organic compound will decolorise dill acidified (aq) KMnO4on warming, but will not decolorise bromine water. What is the compound
A. KMnO4
B. Ethanol
C. Ethane
D. CH3CH2Cl
8 Which enzyme is not involved in fermentation of strach
A. Diastase
B. Zymase
C. Urease
D. Invertase
9 Mild oxidation of glycerol with H2O2/FeSO4gives
A. Glyceraldehyde
B. Dihydroxy acetone
C. Glycerose
D. None
10 Williamson's synthesis is used to prepare
A. Diethylether
B. Phenolphthalein
C. Hydrogenation
D. Bakelite

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