Home
Class 12
CHEMISTRY
Zr(Z=40) and Hf(Z=72) have similar atomi...

Zr(Z=40) and Hf(Z=72) have similar atomic and ionic radii because of:

A

Diagonal relationship

B

Lanthanoid contraction

C

Having similar chemical properties

D

Belonging to same group

Text Solution

Verified by Experts

The correct Answer is:
B

Due to lanthanoid contraction Zr and Hf has similar atomic and ionic radii.
Promotional Banner

Topper's Solved these Questions

  • THE d-AND f- BLOCK ELEMENTS

    ERRORLESS|Exercise Assertion and Reason |11 Videos
  • THE d-AND f- BLOCK ELEMENTS

    ERRORLESS|Exercise NCERT BASED QUESTIONS (Compounds of Transitional Elements)|163 Videos
  • SURFACE CHEMISTRY

    ERRORLESS|Exercise ASSERTION AND REASON|14 Videos
  • THE P -BLOCK ELEMENTS (NITROGEN, OXYGEN, HALOGEN AND NOBLE FAMILY)

    ERRORLESS|Exercise ASSERTION & REASON|22 Videos

Similar Questions

Explore conceptually related problems

Zr and Hf have almost equal atomic and ionic radii because of (a) lanthanoid contraction (b) diagonal relationship (c) actinoid contraction (d) belonging to the same group

How would you account for the following? (l) Transition metals exhibit variable oxidation states. (ii) Zr (Z = 40) and Hf (Z = 72) have almost identical radii. (iii) Transition metals and their compounds act as catalyst.

Contraction in atomic and ionic radii is given by

Why alkaline earth metals have smaller ionic and atomic radii as compared to that of alkali metals?

Write the trend the trend of variation in atomic and ionic radii among the alkali metals.

Zr and Hf have identical sizes. Elaborate.

ERRORLESS-THE d-AND f- BLOCK ELEMENTS -Past Years Questions
  1. Which of the statements is not true ?

    Text Solution

    |

  2. Which of the following does not give oxygen on heating ?

    Text Solution

    |

  3. KMnO4 can be prepared fromK2MnO4 as per the reaction: The reaction ...

    Text Solution

    |

  4. The reaction of aqueous KMnO(4) with H(2)O(2) i acidic conditions give...

    Text Solution

    |

  5. F2 is the formed by reacting K2MnF6 with

    Text Solution

    |

  6. Assuming complete ionization, same moles of which of the following com...

    Text Solution

    |

  7. To protect iron against corrosion, the most suitable metal plating on ...

    Text Solution

    |

  8. When copper is heated with conc.HNO(3) it produces

    Text Solution

    |

  9. Silver obtained from argentiferrous lead containing lead impurity is p...

    Text Solution

    |

  10. Which of the following metals is obtained by leaching out process usin...

    Text Solution

    |

  11. Which of the following does not react with AgCl?

    Text Solution

    |

  12. Zn gives H(2) gas with H(2)SO(4) and HCl but not with HNO(3) because

    Text Solution

    |

  13. The compound insoluble in water is

    Text Solution

    |

  14. Name the gas that can readily decolourise acidified KMnO(4) solution:

    Text Solution

    |

  15. The magnitude and permanganate ions are tetrahedral due to

    Text Solution

    |

  16. The calculated spin only magnetic moment of Cr^2+ ion is:

    Text Solution

    |

  17. Identify the incorrect statement

    Text Solution

    |

  18. Urea reacts with water to form A which will decompose to form B. B whe...

    Text Solution

    |

  19. Zr(Z=40) and Hf(Z=72) have similar atomic and ionic radii because of:

    Text Solution

    |

  20. The incorrect statement among the following is

    Text Solution

    |