Home
Class 12
CHEMISTRY
p-Dichlorobenzene has higher melting poi...

p-Dichlorobenzene has higher melting point than those of o- and m -isomers Discuss.

Text Solution

Verified by Experts

The para isomer is móre symmetrical and fits closely in the crystat tattice and thus has. stronger intermolecular forces of attraction than o-and m-isömers. Since during melting or dissolution, the crystal .lat" tice breaks, therefore larger amount of heat is required to melt or dissolve the p-isomer. In other. words, its melting point is higher and solubility lower
Promotional Banner

Topper's Solved these Questions

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    V PUBLICATION|Exercise QUESTION BANK|139 Videos

  • POLYMERS

    V PUBLICATION|Exercise QUESTION BANK|113 Videos

Similar Questions

Explore conceptually related problems

Assertion : p-Dichlorobenzene is less soluble in organic solvents than the-corresponding o- isomer. Reason : o-Dichlorobenzene is polar while p dichlorobenzene is non-polar.

Assertion: Alcohols have higher boiling points than ethers of comparable molecular masses. Reason: Alcohols and ethers are isomeric in nature.

o-nitro phenol has a lower boiling point than its para isomer. Why?

The metal that has the highest melting point in the first series of transition elements is

Ammonia has a higher boiling point and Is less volatile because of.

Ethanol and methoxymethane are functional isomers. But ethanol has higher boiling point than methoxymethane. Give reason.

Explain why propanol has higher boiling point than that of the hydrocarbon,butane?

Phenols have higher boiling points than arenes due to __________ .

Explain why propanol has higher boiling point than that of. the corresponding hydrocarbon.

Assertion : Nitrogen has higher first ionization energy than that of oxygen. Reason : Nitrogen gas has smaller atomic size than that of oxygen.

V PUBLICATION-HALOALKANES AND HALOARENES-QUESTION BANK
  1. Predict the major product of dehydrohalogenation of 4 - bromo -1 hexen...

    Text Solution

    |

  2. Out of the various possible isomer of C7 H7 C l containing a benzene ...

    Text Solution

    |

  3. p-Dichlorobenzene has higher melting point than those of o- and m -is...

    Text Solution

    |

  4. Haloarenes are insoluble in water but soluble in benzene.

    Text Solution

    |

  5. Explain why thionyl chloride method is preferred for preparing alkyl c...

    Text Solution

    |

  6. Give one chemical test to distinguish between C2 H5 Br and C6 H5 B...

    Text Solution

    |

  7. Arrange the following halides in the increasing order of SN^2 reactivi...

    Text Solution

    |

  8. Write the main product in the following reactions (a) ( CH3)2 CH- C...

    Text Solution

    |

  9. What happens when chlorine is passed through boiling toluene in the pr...

    Text Solution

    |

  10. What effect should the following resonance of vinyl chloride have on i...

    Text Solution

    |

  11. Arrange the following in order of their increasing reactivity in nucle...

    Text Solution

    |

  12. What is plane polarised light?

    Text Solution

    |

  13. What happens when iodoform is heated with silver powder?write chemical...

    Text Solution

    |

  14. Under what conditions, 2-methyl propene can be converted into isobutyl...

    Text Solution

    |

  15. Which is a better nucleophile, a Bromide ion or an iodide ion?

    Text Solution

    |

  16. Give one example for Wurtz-Fittig reaction?

    Text Solution

    |

  17. Give the IUPAC and the trivial name of C6 H6 C l6?

    Text Solution

    |

  18. Arrange the following in increasing order of reactivity towards sulpho...

    Text Solution

    |

  19. Give the structure of an optically active hydrocarbon ( C6 H12) whic...

    Text Solution

    |

  20. W rite the reaction in which iodinine ion replaces the diazonium group...

    Text Solution

    |