Home
Class 12
CHEMISTRY
Why are pentahalides more covalent than ...

Why are pentahalides more covalent than trihalides ?

Text Solution

Verified by Experts

Higher the positive oxidation state of central atom, more will be its polarising power which in Higher the positive oxidation state of central atom , more will be its polarising power which in turn, increases the covalent character of bond formed between the central atom and other atoms. Morever it is difficult to loose 5 electrons to form ion as compared to 3.
Promotional Banner

Topper's Solved these Questions

  • SURFACE CHEMISTRY

    BETTER CHOICE PUBLICATION|Exercise Question Bank|94 Videos

  • THE SOLID STATE

    BETTER CHOICE PUBLICATION|Exercise Numerical Problems|66 Videos

Similar Questions

Explore conceptually related problems

What are the interhalogen compounds ? Why are these more reactive than halogens ?

Why are haloarenes more stable than haloalkanes ?

Why ethylamine is more basic than aniline ?

Why ethylamine is more basic than methyl amine.

Why are aliphatic amines more basic than aromatic amines?

Why ethylamine is more basic than ammonia

Why alkenes are more reactive than alkanes?

BETTER CHOICE PUBLICATION-THE P-BLOCK ELEMENTS-QUESTION BANK
  1. All the five bonds in PCl5 are not equivalent justify.

    Text Solution

    |

  2. Draw the structure of PCl3.

    Text Solution

    |

  3. Why are pentahalides more covalent than trihalides ?

    Text Solution

    |

  4. Why does NO2 dimerise ?

    Text Solution

    |

  5. Write two reactions of HNO3 with non-metals to show the oxidising char...

    Text Solution

    |

  6. Explain the acidic character of Perchloric acid compared to sulphuric ...

    Text Solution

    |

  7. Why white phosphorus is more reactive than red phosphorus?

    Text Solution

    |

  8. What happens when ammonium nitrate is heated ?

    Text Solution

    |

  9. What is laughing gas ?

    Text Solution

    |

  10. Account for the following: The +2 oxidation state of lead is more stab...

    Text Solution

    |

  11. Inert pair effect strongly exists in heavy p-block elements. Comment.

    Text Solution

    |

  12. Why does R3 P=O exist but R3 N =O does not (R-alkyl group) ?

    Text Solution

    |

  13. write the chemical equatikons when Ammonia reacts with aqueous FeCl3.

    Text Solution

    |

  14. Write the chemical equations when Ammonia reacts with aqueous AlCl3.

    Text Solution

    |

  15. Write the chemical equations when Ammonia reacts with aqueous CrCl3.

    Text Solution

    |

  16. Write the chemical equations when Zinc reacts with dilute HNO3.

    Text Solution

    |

  17. Write the chemical equations when Zinc reacts with dilute HNO3.

    Text Solution

    |

  18. Write the chemical equations when: Zinc reacts with cone. HNO3

    Text Solution

    |

  19. PCl5 is known but PI5 is not known. Why?

    Text Solution

    |

  20. NCl3 is readily hydrolysed while NF3 does not. Explain.

    Text Solution

    |