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 |
 82%
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The number of structural isomers of alcohol of formula  C5H12O are:

1. 4 2. 6
3. 8 4. 10
Subtopic:  Alcohols: Preparation & Properties |
 53%
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The number of monohydric phenols that can have the molecular formula, \(\mathrm{C}_7 \mathrm{H}_8 \mathrm{O}\) are:

1. 2 2. 3
3. 4 4. 5
Subtopic:  Alcohols: Preparation & Properties |
 58%
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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 |
 60%
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The group that activates the benzene ring towards electrophilic substitution reaction is:

1. OH 2. NO2
3. CN 4. COOH
Subtopic:  Electrophilic Substitution Reactions, Uses of Phenols |
 77%
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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 |
 66%
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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 compound having the lowest boiling point is:

1. Ethanol 2. Methanol
3. Methoxymethane 4. Propanol
Subtopic:  Ethers: Preparation & Properties, Uses |
 74%
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The preferred alkyl halide for the synthesis of ether in Williamson synthesis is:

1. Secondary 2. Tertiary and secondary both
3. Tertiary 4. Primary
Subtopic:  Ethers: Preparation & Properties, Uses |
 83%
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The product formed on dehydration of propan-1-ol is:
1. 1-Propoxypropane  2. 2-Propoxypropane 
3. 1-Propoxyethane 4. 2-Ethoxypropane 

Subtopic:  Mechanism of Dehydration, Methanol & Ethanol | Ethers: Preparation & Properties, Uses |
 66%
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