Home
Class 12
CHEMISTRY
Assing the reason for the following : ...

Assing the reason for the following :
(i) Transition metals generally form coloured compounds.
(ii) Manganese exhibits highest oxidation state of +7 among the 3d series of transition elements.

Text Solution

Verified by Experts

(i)N/A
(ii) Manganese exhibits highest oxidation state of +7 due to the participation of two ns and five (n-1)d electrons . For example , `Mn_(2)O_(7)`
Promotional Banner

Topper's Solved these Questions

  • D-AND -F BLOCK ELEMENTS

    DINESH PUBLICATION|Exercise Higher order Thinking skill (HOTS)|11 Videos

  • D-AND -F BLOCK ELEMENTS

    DINESH PUBLICATION|Exercise NCERT Exampler , Multiple Choice Questions|21 Videos

  • D-AND -F BLOCK ELEMENTS

    DINESH PUBLICATION|Exercise Additional Important Question|28 Videos

  • CYANIDES, ISOCYANIDES, NITROCOMPOUNDS AND AMINES

    DINESH PUBLICATION|Exercise Unit test - 8|20 Videos

  • ELECTROCHEMISTRY

    DINESH PUBLICATION|Exercise ADDITIONAL NUMERICAL PROBLEMS FOR PRACTICE|12 Videos
DINESH PUBLICATION-D-AND -F BLOCK ELEMENTS-Question From Board Examination
  1. Explain why is Ce^(4+) ion a strong oxidising agent ?

    Text Solution

    |

  2. Describe the oxidising property of KMnO(4) in neutral or faintly alkal...

    Text Solution

    |

  3. Assing the reason for the following : (i) Transition metals generall...

    Text Solution

    |

  4. In the transition series of metals, the metal which exhibits the great...

    Text Solution

    |

  5. Metal-Metal bondin is more extensive in the 4d and 5d series of transi...

    Text Solution

    |

  6. Why does Mn(III) undergo disproportionation reaction easily ?

    Text Solution

    |

  7. How would you account for the following ? (i) Many of the transition...

    Text Solution

    |

  8. The colour of the transition metal ions is due to

    Text Solution

    |

  9. Why is the highest oxidation state of a metal exhibited in its oxide o...

    Text Solution

    |

  10. K(2)Cr(2)O(7) is a good oxidising agent in acidic medium. Explain.

    Text Solution

    |

  11. Why is potssium permanganate thermally unstable at 513 K.

    Text Solution

    |

  12. The inter convertibility of chromate ion and dichromate ion in aqueous...

    Text Solution

    |

  13. Complete the following equation : CrO(4)^(2-)+H^(+) to

    Text Solution

    |

  14. Give reasons for the following : (i) Mn^(3+) is a good oxidising ag...

    Text Solution

    |

  15. Predict which of the following will be coloured in aqueous solution ? ...

    Text Solution

    |

  16. (a) Explain the structure of dichromate ion. (b) Why are cadmium sa...

    Text Solution

    |

  17. COMPARISON OF LANTHANOIDS & ACTINOIDS

    Text Solution

    |

  18. Explain the following : (i) Cu^(+) is colourless and Cu^(2+) is colo...

    Text Solution

    |

  19. What do you mean by (a) Chromyl Chloride test (b) Actinoids?

    Text Solution

    |

  20. Why do transition metals form coloured complexes ?

    Text Solution

    |