The reagent used for the bromination of phenol to 2,4,6-tribromophenol is/are:

1. Bromine water
2. Br2, CS2
3. Br2, CCl4
4. AgBr

Subtopic:  Phenols: Preparation & Properties |
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Phenol is more acidic than ethanol due to -

1. Resonance

2. Phenoxide ions 

3. Less -I effect

4. More ability to gain a proton

Subtopic:  Phenols: Preparation & Properties |
 59%
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An adduct will be formed in which of the following reactions?
 
1. Propene → Propan-2-ol
2. Benzyl chloride → Benzyl alcohol
3. Ethyl magnesium chloride → Propan-1-ol
4. Ethanol →Ethene

Subtopic:  Phenols: Preparation & Properties |
 67%
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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 |
 85%
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The steam-volatile compound x among the following is -

1. o-Nitrophenol

2. p-Nitrophenol

3. Both 1 and 2

4. None of the above

Subtopic:  Phenols: Preparation & Properties |
 73%
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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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O2IntermediateH+,H2O

 The structure and name of intermediate compound is -

 

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 |
 88%
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The correct sequence of reactions is-

1.  
2.   
3.
4.

Subtopic:  Phenols: Preparation & Properties |
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The incorrect reaction among the following is-

1. 

2. 

3. 

4. 

Subtopic:  Phenols: Preparation & Properties |
 69%
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