Home
Class 12
CHEMISTRY
Assertion : In alcohols, the boiling po...

Assertion : In alcohols, the boiling point decreases with decrease in the branching of the carbon chain.
Reason : -There is the increase in van der Waals/ forces between the number of carbon atoms with decrease in the surface area.

Text Solution

Verified by Experts

The correct Answer is:
D
The boiling point of alcohols and phenols increases with increase in the number of carbon atoms (increase in van der Waals. forces). In alcohols, the boiling point decrease with increase ofbranching in carbon chain (because of decrease in van der Waals..forces with decrease in surface area).
Promotional Banner

Topper's Solved these Questions

  • ALCOHOL, PHENOL & ETHER

    BRILLIANT PUBLICATION|Exercise LEVEL II |100 Videos

  • ALCOHOL PHENOL AND ETHERS

    BRILLIANT PUBLICATION|Exercise LEVEL-II |40 Videos

  • ALCOHOLS, PHENOLS AND ETHERS

    BRILLIANT PUBLICATION|Exercise LEVEL III (Linked Comprehension Type) |12 Videos

Similar Questions

Explore conceptually related problems

In which of the following reactions, the number of carbon atoms does not decreases

Assertion : Molar conductivity increases with decrease in concentration. Reason:Conductivity always decreases with decrease in concentration.

Which of these chains has the lowest number for the carbon atom carrying the branch?

Assertion: The boiling point of the compounds increases in the order: Isopropylchloride Reason : Boiling point depends upon the molecular mass and surface area.

Assertion: Solubility of n-alcohl in water decreases with increase in its relative molar mass. Reason: The relative proportion of their hydrocarbon part in alcohols increases with increasing molar mass which permits enhanced hydrogen bonding with water. A) If both the assertion and reason are true statement and reason is correct explanation of the assertion . B) If both the assertion and reason are true statement but reason is not a correct explanation of the assertion . C) If the assertion is true but the reason is a false statement. D) If both assertion and reason are false statements.

Assertion: On moving down the group, ionization enthalpy decreases. Reason: With decrease in size of the atom, the force of attraction between the nucleus and valence electrons decreases.

Assertion:Langmuir adsorption is a single layer phenomenon.Reason: It is due to van der Waals forces.

BRILLIANT PUBLICATION-ALCOHOL, PHENOL & ETHER -LEVEL II (ASSERTION - REASON TYPE)
  1. Assertion: Addition reaction of water to but-1-ene in acidic medium yi...

    Text Solution

    |

  2. Assertion : Carbon oxygen bond length of phenol is slightly less than ...

    Text Solution

    |

  3. Assertion : In alcohols, the boiling point decreases with decrease in...

    Text Solution

    |

  4. Assertion : Alcohols and water are weaker acids than phenols. Reas...

    Text Solution

    |

  5. Assertion : Bromination of phenol takes place even in the absence of...

    Text Solution

    |

  6. Assertion : The cleavage of C-O bond in ethers takes place under dra...

    Text Solution

    |

  7. Assertion: Dipolemoment ofphenol is smaller than that of methanol. R...

    Text Solution

    |

  8. Assertion: Neopentyl alcohol on treatment with HCl gives neopentyl chl...

    Text Solution

    |

  9. Assertion: Phenoxide ion on treatment with an active alkyl h...

    Text Solution

    |

  10. Assertion:Phenol forms 2,4,6-tribromophenol on treatment with Br2 in c...

    Text Solution

    |

  11. Assertion: Alcohols have higher boiling points than ethers of comparab...

    Text Solution

    |

  12. Assertion: Commercially carboxylic acids are reduced to alcohols by co...

    Text Solution

    |

  13. Assertion: Ethers are not prepared by the dehydration of secondary and...

    Text Solution

    |

  14. Assertion: CO2 is non polar, while ROR is polar in nature. Reason: ...

    Text Solution

    |

  15. Assertion: t-Butyl methyl ether is not prepared by the reaction of t-b...

    Text Solution

    |

  16. Assertion: Anisole undergoes electrophilic substitution at o-and p-pos...

    Text Solution

    |

  17. Assertion: Acid catalysed dehydration of tert-butanol proceeds faster ...

    Text Solution

    |

  18. Assertion: Reaction of alcohols with SOCl2 is catalysed by the presenc...

    Text Solution

    |

  19. Assertion: Solubility of n-alcohl in water decreases with increase in ...

    Text Solution

    |

  20. Assertion: The bond angle in alcohols is slightly less than the tetr...

    Text Solution

    |