Home
Class 12
CHEMISTRY
Eventhough Cu^(2+) has one unpaired d - ...

Eventhough `Cu^(2+)` has one unpaired d - electron, anhydrous copper sulphate is colourless. Why?

Text Solution

Verified by Experts

Crystal field splitting is absent in anhydrous `CuSO_(4)` due to the absence of water. Hence d-d transition is not possible. Thus anhydrous `CuSO_(4)` is colourless.
Promotional Banner

Topper's Solved these Questions

  • ELEMENTS OF D - BLOCK

    AAKASH SERIES|Exercise EXERCISE - 5.1.1|5 Videos

  • ELEMENTS OF D - BLOCK

    AAKASH SERIES|Exercise EXERCISE - 5.1.2|16 Videos

  • ELECTROCHEMISTRY

    AAKASH SERIES|Exercise PRACTICE EXERCISE|55 Videos

  • ENVIRONMENTAL CHEMISTRY

    AAKASH SERIES|Exercise QUESTIONS FOR DESCRIPTIVE ANSWERS|8 Videos

Similar Questions

Explore conceptually related problems

As Boran has one unpaired electron, what is the result of it ?

Which of the following ion has three unpaired d-electrons

CuSO_(4).5H_(2)O is blue in colour where as anhydrous CuSO_(4) is colourless. Why?

Aqueous Cu^(2+) ions are blue in colour, where as Aqueous Zn^(2+) ions are colourless. Why ?

Chromium atom has six unpaired electrons. Substantiate.

Anhydrous copper sulphate is colourless, but hydrated copper sulphate is blue. Explain ?

Both NO and NO_(2) have odd number of electrons. NO is colourless, but NO_(2) is coloured. Why?

AAKASH SERIES-ELEMENTS OF D - BLOCK-EXERCISE - 5.2
  1. Eventhough Cu^(2+) has one unpaired d - electron, anhydrous copper sul...

    Text Solution

    |

  2. Give some examples for the ions with pseudo inert gas electronic confi...

    Text Solution

    |

  3. Explain the possible oxidation states of chromium by using electronic ...

    Text Solution

    |

  4. How the maximum and minimum oxidation states of transition elements re...

    Text Solution

    |

  5. What is the oxidation state of central metal in [Ni(CO)(4)] and in [Fe...

    Text Solution

    |

  6. How heat of atomisation changes in 3d-series elements are stable?

    Text Solution

    |

  7. Why copper(I) compounds undergo disproportionation in aqueous solution...

    Text Solution

    |

  8. Transition elements exhibit their highest oxidation states in oxides a...

    Text Solution

    |

  9. Among Fe^(2+) and Cr^(2+), which is stronger reductant? Why?

    Text Solution

    |

  10. Ni^(2+) is more stable than Pt^(2+), but Pt^(4+) is more stable than N...

    Text Solution

    |

  11. Ferrous oxalate is used in developing black and white photographic fil...

    Text Solution

    |

  12. In 3d-series which element has positive E(M^(2+)//M)^(@) value? Why?

    Text Solution

    |

  13. Fe^(3+) can oxidise halide ions. Discuss.

    Text Solution

    |

  14. Why calculated magnetic moment of Co^(2+) is less than the experimenta...

    Text Solution

    |

  15. Mn^(x+) has a magnetic moment of 4.9 BM. Calculate the value of x in t...

    Text Solution

    |

  16. A salt of 3d metal gave a white precipitate with NH(4)OH, but dissolve...

    Text Solution

    |

  17. What is the percentage of number of ferro ions in the non-stoichiometr...

    Text Solution

    |

  18. Addition of appreciable amount KMnO(4) in conc. H(2)SO(4) explodes. Ex...

    Text Solution

    |

  19. An aqueous solution of Al(2)(SO(4))(3),FeSO(4) and chrome alum is heat...

    Text Solution

    |

  20. E^(@) for Mn^(3+), Mn^(2+) is more positive than that for Fe^(3+), Fe^...

    Text Solution

    |

  21. Amongest the bivalent ions of 3d-elements, Mn(II) shows maximum parama...

    Text Solution

    |