The correct order of the acidic strength for the above compounds is -

     (I)       (II)       (III)

1. I > II > III                           

2. III > I > II

3. II > III > I                           

4. I > III > II

Subtopic:  Phenols: Preparation & Properties |
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The most acidic compound among the following is:

1.   ClCH2-CH2OH 2.  
3.   4.   
Subtopic:  Phenols: Preparation & Properties |
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"A" in the reaction below is:

1. Chlorobenzene

2. 1,2-Dichlorobenzene

3. 1,3-dichlorobenzene

4. None of these

Subtopic:  Phenols: Preparation & Properties |
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Ortho nitrophenol is more acidic than ortho methoxy phenol because:

1. The NO2-group increases the electron density in phenol while the methoxy group decreases the electron density in phenol
2. The nitro-group is an electron-withdrawing group while the methoxy group is an electron-releasing group
3. The methoxy-group is an electron-withdrawing group while the nitro group is an electron-releasing group
4. None of the above
Subtopic:  Phenols: Preparation & Properties |
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The product 'B' in the below mentioned reaction is-

1. Phenol 

2. Benzol

3. Sodium benzoate 

4. Benzal

Subtopic:  Phenols: Preparation & Properties |
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The strongest acid among the following is:

1.    2.  
3.   4.
Subtopic:  Phenols: Preparation & Properties |
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Potassium permanganate reagent is used for -
1. Oxidation of primary alcohol to carboxylic acid.
2. Oxidation of primary alcohol to aldehyde.
3. Bromination of phenol to 2,4,6-tribromophenol.
4. Dehydration of propan-2-ol to propene.

Subtopic:  Mechanism of Dehydration, Methanol & Ethanol | Phenols: Preparation & Properties |
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The most acidic compound among the following is:

1.  2.  
3.   4.  
Subtopic:  Phenols: Preparation & Properties |
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Match the structures of the compounds given in Column I with the name of the compounds given in Column II.

Column I Column II
A.

 

1.

Phenetole

B. 

2.

o-Cresol

C.

 

3.

Catechol

D.

 

4. 

Resorcinol

Codes

A B C D
1. 2 4 1 3
2. 3 1 4 2
3. 1 4 3 2
4. 4 3 2 1
Subtopic:  Phenols: Preparation & Properties |
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The ionisation constant of phenol is higher than that of ethanol because -                   

1. Phenoxide ion is bulkier than ethoxide

2. Phenoxide ion is a stronger base than ethoxide

3. Phenoxide ion is stabilised through delocalisation

4. Phenoxide ion is less stable than ethoxide

Subtopic:  Alcohols: Preparation & Properties | Phenols: Preparation & Properties |
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