Home
Class 12
CHEMISTRY
Why solids with F-centres are paramagnet...

Why solids with F-centres are paramagnetic?

Text Solution

Verified by Experts

Unpaired and free electrons occupying anionic vacancies are responsible for paramagnetic behavious of crystal.
Promotional Banner

Topper's Solved these Questions

  • SAMPLE QUESTION PAPER 5

    ICSE|Exercise Questions (Complete the following statements by selecting the correct alternative from the choices given :) |4 Videos

  • SAMPLE QUESTION PAPER 3

    ICSE|Exercise QUESTION|70 Videos

  • SAMPLE QUESTIONS PAPER 2

    ICSE|Exercise QUESTIONS|47 Videos

Similar Questions

Explore conceptually related problems

F-centre is

Assertion (A) : Solids containing F centres are paramagnetic. Reason (R ) : Solids containing F centres conduct electricity and it is n -type semiconduction.

Why NO is paramagnetic?

Why superoxides of of alkali metals are paramagnetic ?

Why is KO_(2) paramagnetic ?

Using valence bond theory, explain the geometry of nickel carbonyl. Why is it not paramagnetic ? (Z for Ni = 28).

Why are solids rigid ?

Why is nitric oxide paramagnetic in gaseous state but the solid obtained on cooling it is diamagnetic ?

Magnetically ordered solids transform to paramagnetic state upon heating. Explain.

ICSE-SAMPLE QUESTION PAPER 5 -Questions (Answer the following questions)
  1. Ethylene glycol is used as an antifreeze agent. Calculate the amount o...

    Text Solution

    |

  2. Schottky defect lowers the density of ionic crystals while Frenkel def...

    Text Solution

    |

  3. Why solids with F-centres are paramagnetic?

    Text Solution

    |

  4. What happens when freshly precipitated Fe(OH)3 is shaken with small am...

    Text Solution

    |

  5. Why lyophilic colloidal sols are more stable than lyophobic colloidal ...

    Text Solution

    |

  6. What form freundlich adsorption equation will take at high pressure ?

    Text Solution

    |

  7. For the coordination complex ion [Co(NH(3))(6)]^(3+) Give the IUPAC ...

    Text Solution

    |

  8. Calculate the oxidation number of the underlined atom in the following...

    Text Solution

    |

  9. For the complex ion of [Co(NH3)6]^(3+) State the hybridization of th...

    Text Solution

    |

  10. How is potassium dichromate prepared from a sample of chromite ore ? G...

    Text Solution

    |

  11. An organic compound A with molecular formula C2 H7 N on reaction wit...

    Text Solution

    |

  12. Name the important ore of silver. Write all the steps and reactions in...

    Text Solution

    |

  13. State Faraday's first law of electrolysis.

    Text Solution

    |

  14. How many electrons will flow when a current of 5 amperes is passed thr...

    Text Solution

    |

  15. Define the following terms : (a) Molarity (b) Molal elevation cons...

    Text Solution

    |

  16. A solution containing 15 g urea (molar mass =60" g mol"^(-1)) per litr...

    Text Solution

    |

  17. Sulfur dioxide acts as an oxidising agent as well as a reducing agent....

    Text Solution

    |

  18. Write all the chemical reactions involved in the manufacture of sulphu...

    Text Solution

    |

  19. Account for the following SF6 exists but OF6 does not, though both ...

    Text Solution

    |

  20. Give reasons for the following : (A) (CH(3))(3)P=O exists but (CH(3)...

    Text Solution

    |