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 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 # 2

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

Question # 3

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

Question # 4

When phenol is reduced in the presence of Zn dust, we get

Question # 5

95% alcohol is called

Question # 6

Concentration of rectified spirit is:

Question # 7

Hydrolytic coversion of sucrose into glucose and fructose is known as

Question # 8

If an electrophile attacks then ______ bond breaks first

Question # 9

The organic compound, alcohols are much closer to, in structure and hence is also called its derivative:

Question # 10

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

Question # 11

Which compound shows hydrogen bonding

Question # 12

Which compound shows more hydrogen bonding?

Question # 13

Which of the following statements is correct?

Question # 14

When phenol is distilled with zinc dust. It is reduced to

Question # 15

Ethyl alcohol prepared during fermentation is pure:

Question # 16

Organic acid without a carboxylic acid group is

Question # 17

The strongest acid among the following aromatic compound is

Question # 18

Absolute alcohol is obtained by adding rectified apirit in alcohol:

Question # 19

Carbolic acid is the other name for

Question # 20

Ethanol can be converted into ethanoic acid :

Question # 21

denaturing of alcohol is done by adding methanol in ethanol:

Question # 22

Alcohols react with carboxylic acid to produce the class of compounds known as

Question # 23

Which structure shows a tertiary alcohol

Question # 24

Which is used as an antifreeze?

Question # 25

I-Phenylethanol can be prepared by reaction of benzaldehyde with

Question # 26

Diethyl ether is obtained by Williamsons synthesis using

Question # 27

Phenol is more readily soluble in

Question # 28

Ethanol is prepared in Pakistan form fermentation of:

Question # 29

In its reaction with Na, 1 mol of X gives 1 mol of H2(g). What is X

Question # 30

Ethyl alcohol is industrially prepared from ethylene by

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ECAT Chemistry Chapter 22 Important MCQ's

Sr.# Question Answer
1 Which isomers of C5H11OH gives, on dehydration, the greatest number of different alkenes
2 Dehydration of an alcohol at 180°
A. Alkene
B. Ether
C. Ester
D. An hydride
3 Taste of lower alcohols is:
A. Sweet
B. Bitter
C. Our
D. Salty
4 Phenol is more readily soluble in
A. Dil. HCl
B. Both NaOH and HCl
C. NaOH sol
D. Sodium bicarbonate solution
5 Which of the following cannot be produced by acidic dehydration of alcohols?
A. Ethers
B. Aldehyde
C. Alkyl Hydrogen sulphate
D. Alkene
6 C2H5OH can be differentiated from CH3OH by
A. Reaction with HCl
B. Reaction with NH3
C. Iodoform test
D. Solubility in water
7 Phenol is a weak acid. The correct order of acid strength of carboxylic acid, phenol and alcohol is
A. Carboxylic acid > phenol > alcohol
B. Carboxylic acid > alcohol > phenol
C. Phenol > carboxylic acid > alcohol
D. Alcohol > phenol > carboxylic acid
8 Ethanol containing some methanol is called
A. Absolute spirit
B. Rectified spirit
C. Power alcohol
D. Methylated spirit
9 Methanol is prepared from CO and H2 using catalyst:
A. ZnO
B. Cr2O3
C. Pt
D. Ni
10 Baukelite is a polymer obtained from two monomers
A. Phenol and ethanol
B. Phenol and methanol
C. Phenol and methanal
D. Phenol and acetone

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