Reactions of Phenols
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323326 When phenol is treated with CHCl3 and NaOH, the product formed is :

1 Benzaldehyde
2 Salicylaldehyde
3 Salicylic acid
4 Benzoic acid
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323327 In the reaction :the electrophile involved is
supporting img

1 dichloromethylanion(CΘHCl2)
2 dichlorocarbene(:CCl2)
3 formylcation(CHO)
4 dichloromethylcation(CΘHCl2)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323328 Assertion :
Phenol undergoes Kolbe reaction whereas ethanol does not.
Reason :
Phenoxide ion is more basic than ethoxide ion.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323326 When phenol is treated with CHCl3 and NaOH, the product formed is :

1 Benzaldehyde
2 Salicylaldehyde
3 Salicylic acid
4 Benzoic acid
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323327 In the reaction :the electrophile involved is
supporting img

1 dichloromethylanion(CΘHCl2)
2 dichlorocarbene(:CCl2)
3 formylcation(CHO)
4 dichloromethylcation(CΘHCl2)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323328 Assertion :
Phenol undergoes Kolbe reaction whereas ethanol does not.
Reason :
Phenoxide ion is more basic than ethoxide ion.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323329 supporting img
The electrophile involved in above reaction has ____ lone pair of electrons on central carbon atom.

1 1
2 0
3 2
4 3
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323326 When phenol is treated with CHCl3 and NaOH, the product formed is :

1 Benzaldehyde
2 Salicylaldehyde
3 Salicylic acid
4 Benzoic acid
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323327 In the reaction :the electrophile involved is
supporting img

1 dichloromethylanion(CΘHCl2)
2 dichlorocarbene(:CCl2)
3 formylcation(CHO)
4 dichloromethylcation(CΘHCl2)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323328 Assertion :
Phenol undergoes Kolbe reaction whereas ethanol does not.
Reason :
Phenoxide ion is more basic than ethoxide ion.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323329 supporting img
The electrophile involved in above reaction has ____ lone pair of electrons on central carbon atom.

1 1
2 0
3 2
4 3
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323326 When phenol is treated with CHCl3 and NaOH, the product formed is :

1 Benzaldehyde
2 Salicylaldehyde
3 Salicylic acid
4 Benzoic acid
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323327 In the reaction :the electrophile involved is
supporting img

1 dichloromethylanion(CΘHCl2)
2 dichlorocarbene(:CCl2)
3 formylcation(CHO)
4 dichloromethylcation(CΘHCl2)
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323328 Assertion :
Phenol undergoes Kolbe reaction whereas ethanol does not.
Reason :
Phenoxide ion is more basic than ethoxide ion.

1 Both Assertion and Reason are correct and Reason is the correct explanation of the Assertion.
2 Both Assertion and Reason are correct but Reason is not the correct explanation of the Assertion.
3 Assertion is correct but Reason is incorrect.
4 Assertion is incorrect but Reason is correct.
CHXII11:ALCOHOLS, PHENOLS AND ETHERS

323329 supporting img
The electrophile involved in above reaction has ____ lone pair of electrons on central carbon atom.

1 1
2 0
3 2
4 3