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.

A

Both assertion and reason are true, and reason is the correct explanation of the assertion.

B

Both assertion and reason are true but reason is not the correct explanation of assertion.

C

Assertion is not true but reason is true.

D

Both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
B

Assertion and reason are true but reason is not correct explanation of assertion. Separation of Zr and Hf is difficult, it is not because of they lie in the same group of Periodic Table. This is due to lanthanoid contraction which causes almost similar radii of both of them.
Promotional Banner

Topper's Solved these Questions

  • COORDINATION COMPOUNDS

    NCERT EXEMPLAR|Exercise Coordination Compounds|50 Videos
  • ELECTROCHEMISTRY

    NCERT EXEMPLAR|Exercise Electrochemistry|68 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

NCERT EXEMPLAR-D AND F-BLOCK ELEMENTS-D And F-Block Elements
  1. Match the catalyst given in Column I with the processes given in Colum...

    Text Solution

    |

  2. Match the compounds/elements given in Column I with uses given in Colu...

    Text Solution

    |

  3. Match the properties given in Column I with the metals given in Column...

    Text Solution

    |

  4. Match the statements given in Column I with the oxidation states given...

    Text Solution

    |

  5. Match the solutions given in Column I and the colours given in Column ...

    Text Solution

    |

  6. Match the property given in Column I with the element given in Column ...

    Text Solution

    |

  7. Match the properties given in Column I with the metals given in Column...

    Text Solution

    |

  8. Assertion (A) Cu^(2+) iodine is not known. Reason (R ) Cu^(2+) oxidi...

    Text Solution

    |

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

    Text Solution

    |

  10. Assertion (A) Actinoids form relatively less stable complexes as compa...

    Text Solution

    |

  11. Assertion (A) Cu cannot liberate hydrogen from acids. Reason (R ) B...

    Text Solution

    |

  12. Assertion (A) The highest oxidation state of osmium is +8. Reason (...

    Text Solution

    |

  13. Identify A to E and also explain the reaction involved.

    Text Solution

    |

  14. When a chromite ore (A) is fused with sodium carbonate in free excess ...

    Text Solution

    |

  15. When an oxide of manganese (A) is fused with KOH in the presence of an...

    Text Solution

    |

  16. On the basis of lanthanoid contraction, explain the following: (i)...

    Text Solution

    |

  17. Answer the following questions (i) Which element of the first transi...

    Text Solution

    |

  18. Mention the type of compounds formed when small atoms like H, C and N ...

    Text Solution

    |

  19. (a) Transition metals can act as catalysts because these can change t...

    Text Solution

    |

  20. A violet compound of manganese (A) decomposes on heating to liberate o...

    Text Solution

    |