Assertion(A): Ortho and para nitrophenols are more acidic than phenol.
Reason(R): Phenoxide ion formed by ortho and para nitrophenols are more stable than pehenoxide ion formed by phenol.

1. Both assertion and reason are true, and reason is the correct explanation of the assertion.

2. Both assertion and reason are true, but reason is not the correct explanation of the assertion.

3. Assertion is true but reason is false.

4. Assertion is false but reason is true.

Subtopic:  Electrophilic Substitution Reactions, Uses of Phenols |
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Assertion : The order of reactivity of alcohol in Luca's test is 3° >2° > 1°

Reason : The order of stability of carbocation intermediate is 3° >2° > 1°

1. Both assertion and reason are true, and reason is the correct explanation of the assertion 

2. Both assertion and reason are true, but reason is not correct explanation of the assertion 

3. Assertion is true but reason is false 

4. Both assertion and reason are false 

Subtopic:  Alcohols: Preparation & Properties | Mechanism of Dehydration, Methanol & Ethanol |
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Select the correct option based on 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 |
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Select the correct option based on statements below:

Assertion (A): Phenol forms 2,4,6-tribromophenol on treatment with Br2 in carbon disulphide at 273K.
Reason (R): Bromine polarises in carbon disulphide.
  
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. Both (A) and (R) are false.
Subtopic:  Electrophilic Substitution Reactions, Uses of Phenols |
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Select the correct option based on statements below:

Assertion (A): Ethanol is a weaker acid than phenol.
Reason (R): Sodium ethoxide may be prepared by the reaction of ethanol with aqueous NaOH.
 
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:  Phenols: Preparation & Properties |
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Select the correct option based on statements below:

Assertion (A): o-Nitrophenol is less soluble in water than the m and p-isomers.
Reason (R): m and p-Nitrophenols exist as associated molecules.
 
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:  Phenols: Preparation & Properties |
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Select the correct option based on statements below:

Assertion (A): Bromination of phenol is  carried out in the presence of Lewis acid.
Reason (R): Lewis acid polarizes the bromine molecule.
 
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 |
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Select the correct option based on statements below:

Assertion (A): Boiling points of alcohols and ethers are high.
Reason (R): They can form intermolecular hydrogen bonding.
  
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. Both (A) and (R) are false.
Subtopic:  Alcohols: Preparation & Properties |
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Select the correct option based on statements below:

Assertion (A):  Bond angle in ethers is slightly less than the tetrahedral angle.
Reason (R): There is a repulsion between the two bulky (— R) groups.
 
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:  Ethers: Preparation & Properties, Uses |
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Select the correct option based on statements below:

Assertion (A): The IUPAC name of the compoundis 2-ethoxy-2-methylethane.
Reason (R): In IUPAC nomenclature, ether is regarded as a hydrocarbon derivative in which a hydrogen atom is replaced by —OR or -OAr group
[where, R = alkyl group and Ar = aryl group].
 
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:  Ethers: Preparation & Properties, Uses |
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