Home
Class 12
CHEMISTRY
Assertion (A) Phenol forms 2, 4, 6-tribr...

Assertion (A) Phenol forms 2, 4, 6-tribromophenol o treatement with `Br_(2)` in carbon disulphide at 273K.
Reason (R) Bromine polarises in carbon disulphide.

A

Assertion and reason both are correct and reason is correct explanation of assertion.

B

Assertion and reason both are wrong statements.

C

Assertion is correct statement but reason is wrong statement.

D

Assertion is wrong statement but reason is correct statement.

Text Solution

Verified by Experts

The correct Answer is:
B

Assertion and reason both are wrong statements.
Correct Assertion Phenol form 2, 4, 6-tribromophenol on treatment with bromine in water.

Correct Reason In water, phenol gives phenoxide ion. This phenoxide ion activates the ring towards electrophilic substitution reaction.
Promotional Banner

Topper's Solved these Questions

  • ALDEHYDE, KETONES AND CARBOXYLIC ACIDS

    NCERT EXEMPLAR|Exercise Aldehyde, Ketones And Carboxylic Acids|50 Videos

Similar Questions

Explore conceptually related problems

Assertion: Phenol forms 2,4,6- tribromophenol on treatement with Br_(2) water at 373K . Reason: Phenol is o-p -directing group.

When phenol is treated with a solution of Br_(2) in carbon disulphide at 0^(@)C , the major product formed is

Phenol reacts with bromine in carbon disulphide at low temperature to give

The reagents used to convert phenol to 2,4,6-tribromophenol is ...

Assertion (A) Phenols give o-and p-nitrophenol on nitration with conc. HNO_(3) and H_(2)SO_(4) mixture. Reason (R) -OH group in phenol is o-,p-directing.

Aniline reacts with bromine in CS_(2) [carbon disulphide] at room temperature to yield .

NCERT EXEMPLAR-ALCOHOLS, PHENOLS AND ETHERS-Alcohols, Phenols And Ethers
  1. The carbon-oxygen bond in phenol is slightly stronger than that in met...

    Text Solution

    |

  2. Arrange water, ethanol and phenol in increasing order of acidity and g...

    Text Solution

    |

  3. Match the structures of the compounds given in Column I with the name ...

    Text Solution

    |

  4. Match the starting material given in Column I with the products formed...

    Text Solution

    |

  5. Match the items of Column I with items of Column II.

    Text Solution

    |

  6. Match the items of Column I with items of Column II.

    Text Solution

    |

  7. Assertion (A) Addition reaction of water to but-1-ene in acidic medium...

    Text Solution

    |

  8. Assertion (A) p-nitrophenol is more acidic than phenol. Reason (R) N...

    Text Solution

    |

  9. Assertion (A) IUPAC name of the compound CH(3)-underset(CH(3))unders...

    Text Solution

    |

  10. Assertion (A) Bond angle is ethers is slightly less than tetrahedral a...

    Text Solution

    |

  11. Assertion (A) Boiling points of alcohols and ethers are high. Reason...

    Text Solution

    |

  12. Assertion (A) Like bromination of benzene, bromination of phenol is al...

    Text Solution

    |

  13. Assertion (A) o-nitrophenol is less soluble in water than the m and p-...

    Text Solution

    |

  14. Assertion (A) Ethanol is a weaker acid than phenol. Reason (R) Sodiu...

    Text Solution

    |

  15. Assertion (A) Phenol forms 2, 4, 6-tribromophenol o treatement with Br...

    Text Solution

    |

  16. Assertion (A) Phenols give o-and p-nitrophenol on nitration with conc....

    Text Solution

    |

  17. Write the mechanism of the reaction of HI with methoxybenzene.

    Text Solution

    |

  18. (a) Name the starting material used in the industrial preparation of p...

    Text Solution

    |

  19. How can phenol be converted to aspirin ?

    Text Solution

    |

  20. Explain a process in which a biocatalyst is used industrial preparatio...

    Text Solution

    |