Home
Class 12
CHEMISTRY
Fourteen elements following Lanthanum ar...

Fourteen elements following Lanthanum are called Lanthanoids. `KMnO_2` is a purple coloured crystal and it acts as an oxidant. How will you prepare from `MnO_2` ?

Promotional Banner

Topper's Solved these Questions

  • COORDINATION COMPOUNDS

    A N EXCEL PUBLICATION|Exercise QUESTION BANK|86 Videos
  • ELECTROCHEMISTRY

    A N EXCEL PUBLICATION|Exercise QUESTION BANK|80 Videos

Similar Questions

Explore conceptually related problems

Fourteen elements following Lanthanum are called Lanthanoids. What is Lanthanoid contraction? Give reason for it.

Mixture of CaCN_2 and carbon called Nitrolim. How is it prepared.

Potassium dichromate is an orange coloured crystal and is an important compound used as an oxidant in many reactions How do you prepare K_2Cr_2O_7 from chromite ore?

Starting with NaCl how would you proceed to prepare Na_2O_2

How will you prepare the following from methyl chloride ? Ethane.

Starting with NaCl how would you proceed to prepare Na_2CO_3 ?

Potassium dichromate is an orange colour crystal and is an important compound used as an oxidant in many reactions How will you account for the colour of potassium dichromate crystals?

Which of the following halides is not oxidized by MnO_(2) ?

How will you prepare Ca(OH)_2 and CaCO_3 from quick lime.

A N EXCEL PUBLICATION-D AND F - BLOCK ELEMENTS-QUESTION BANK
  1. Potassium permanganate and potassium dichromate are two transition met...

    Text Solution

    |

  2. Fourteen elements following Lanthanum are called Lanthanoids. What is ...

    Text Solution

    |

  3. Fourteen elements following Lanthanum are called Lanthanoids. KMnO2 is...

    Text Solution

    |

  4. Which of the following oxidation state is common for lanthanides?

    Text Solution

    |

  5. Draw the structures of chromate and dichromate ions'.

    Text Solution

    |

  6. Zirconium (Zr) belongs to. ‘4d and Hafnium (Hf) belongs to 5d transiti...

    Text Solution

    |

  7. Which of the following odixation state is not shown by Manganese?

    Text Solution

    |

  8. Potassium permanganate and potassium dichromate are two transition met...

    Text Solution

    |

  9. Potassium permanganate (KMnO4) is a strong oxidizing agent. Write any ...

    Text Solution

    |

  10. Transition elements are d- block elements Write any four characteristi...

    Text Solution

    |

  11. Transition elements are d - block elements and inner transition elemen...

    Text Solution

    |

  12. Transition elements are d - block elements and inner transition elemen...

    Text Solution

    |

  13. Transition elements are d - block elements and inner transition elemen...

    Text Solution

    |

  14. Transition elements are d- block elements Write any four characteristi...

    Text Solution

    |

  15. transition elements are 'd' block elements. Cr^(2+) and Mn^(3+) have d...

    Text Solution

    |

  16. Which of the following is not a lanthanoid element?

    Text Solution

    |

  17. Zr and Hf are having similar chemical properties. This is due to.

    Text Solution

    |

  18. Magnetic moments arise due to the presence of unpaired electrons’ Calc...

    Text Solution

    |

  19. Transition metal ions are generally coloured. Why?

    Text Solution

    |

  20. A transition element is defined as one which has incompletely filled d...

    Text Solution

    |