Home
Class 12
CHEMISTRY
Assertion (A) Separation of Zr and Hf is...

Assertion (A) Separation of Zr and Hf is difficult.
Reason (R ) Because Zr and Hf lie in the same group of the Periodic Table.

Text Solution

Verified by Experts

Correct explanation. Due to lanthanoid contraction Zr and Hf have nearly the same size.
Promotional Banner

Topper's Solved these Questions

  • D- AND F-BLOCK ELEMENTS

    PRADEEP|Exercise IMPORTANT QUESTIONS|30 Videos

  • D- AND F-BLOCK ELEMENTS

    PRADEEP|Exercise ASSERTION-REASON TYEP QUESTIONS(TYPE 1)|7 Videos

  • CORDINATION COMPOUNDS

    PRADEEP|Exercise Important Questions|28 Videos

  • ELECTROCHEMISTRY

    PRADEEP|Exercise IMPORTANT QUESTIONS FOR BOARD EXAMINATION|25 Videos

Similar Questions

Explore conceptually related problems

The elements of same group of the periodic table have

Metals belonging to the same group in the periodic table are

Hydrogen can be placed in group 17 pf the periodic table because

The atoms of elements beloning to the same group of periodic table have the same

Assertion : The separation of lanthanoids is difficult. Reason : Lanthanoids exhibit the common oxidation states of +2, +3, +4.

PRADEEP-D- AND F-BLOCK ELEMENTS-ASSERTION-REASON TYEP QUESTIONS(TYPE II)
  1. Assertion: Mercury is not considered as a transition element. Reason...

    Text Solution

    |

  2. Assertion: Cu, Ag and Au lie in Group 11 of the periodic table. Hence ...

    Text Solution

    |

  3. Assertion: The second ionisation energies of V, Cr and Mn are in the o...

    Text Solution

    |

  4. Assertion: Tungsten has very high melting point. Reason: Tungsten is...

    Text Solution

    |

  5. Assertion: Mn atom loses ns electrons first during ionisation as compa...

    Text Solution

    |

  6. Assertion: E^(ɵ) for (Mn^(3+))/(Mn^(2+)) is more positive than for (Cr...

    Text Solution

    |

  7. Assertion : Mercury vapour is shining silvery in appearance. Reason ...

    Text Solution

    |

  8. Statement : Aufbau rule is violated in writing electronic configuratio...

    Text Solution

    |

  9. Assertion: Equivalent mass of KMnO4 is same in the neutral as well as ...

    Text Solution

    |

  10. Assertion: In Cr2O7^(2-) ion, all the Cr-O bond lengths are equal. R...

    Text Solution

    |

  11. Assertion: K2Cr2O7 is used as primary standard in volumetric analysis....

    Text Solution

    |

  12. Assertion : Change in colour of the acidic solution of breath is used ...

    Text Solution

    |

  13. Assertion: The purple colour of KMnO4 is due to the charge transfer tr...

    Text Solution

    |

  14. Assertion (A) Cu (II) iodide is not known. Reason (R ) Cu^(2+) oxidi...

    Text Solution

    |

  15. Assertion.Atomic size of silver is almost the same as that of gold. ...

    Text Solution

    |

  16. Assertion (A) Separation of Zr and Hf is difficult. Reason (R ) Bec...

    Text Solution

    |

  17. Assertion. Actinoids show larger number of oxidation states than lant...

    Text Solution

    |