Select the correct option based on the statements below:

Assertion (A): Phenols give o-and p-nitrophenol on nitration with conc. HNO3 and H2SO4 mixture.
Reason (R): —OH group in phenol is o-, p-directing.
 
1. Both (A) and (R) are True, and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. (A) is False but (R) is True.

Subtopic:  Electrophilic Substitution Reactions, Uses of Phenols |
Level 3: 35%-60%
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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 |
 54%
Level 3: 35%-60%
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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 |
 60%
Level 2: 60%+
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If chlorobenzene is treated with A. NaOH and B. HCl

The final product formed is :

1) Benzamide

2) Phenol

3) Cumene

4) Benzoic acid

Subtopic:  Phenols: Preparation & Properties |
 86%
Level 1: 80%+
Please attempt this question first.
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Please attempt this question first.

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 |
 62%
Level 2: 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 |
 79%
Level 2: 60%+
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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%
Level 2: 60%+
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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 |
 86%
Level 1: 80%+
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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 |
 75%
Level 2: 60%+
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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%
Level 1: 80%+
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