Home
Class 12
CHEMISTRY
The first ionsation enthalpies of the la...

The first ionsation enthalpies of the lanthanoids are around…A….,the second about ….B…. Comparable with those of …..C….Here, A,B and C refers to `

A

`A-600KJmol^(-1),B-1200KJmol^(-1)C-"calcium"`

B

`A-1200KJmol^(-1),B-600KJmol^(-1)C-"strontium"`

C

`A-1200KJmol^(-1),B-600KJmol^(-1)C-"lanthanum"`

D

`A-600KJmol^(-1),B-1200KJmol^(-1)C-"lutetium"`

Text Solution

Verified by Experts

The correct Answer is:
A
The first ionisation enthalpies of the lanthanoids are around `600KJ mol^(-1), the second about 1200KLmol^(-1)` comparable with those of calcium.
Promotional Banner

Topper's Solved these Questions

  • D - AND F-BLOCK ELEMENTS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise Exercise 2 (Miscellaneous Problems)|69 Videos

  • D - AND F-BLOCK ELEMENTS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|27 Videos

  • D - AND F-BLOCK ELEMENTS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|27 Videos

  • COORDINATION COMPOUNDS

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET Corner|7 Videos

  • ELECTROCHEMISTRY

    MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS|Exercise MHT CET CORNER|32 Videos

Similar Questions

Explore conceptually related problems

The first ionisation enthalpies of the lanthanoids are around (A)______, the second about (B)______ comparable with those of (C)_____ here, A,B and C refers to

The actinoids include the ….A…. elements from ….B…. To ….C…. Here, A, B and C refer ot

Most A, B, C, D, E and F refer to

…..A …. And B…. Are the example of intrinsic semiconductors . Here , A and B refer to

Halogen atom being slightly …A… is …B… directing. Here, A and B refer to

If the output of the information source is a non-electrical signal like a voice signal, a ...A... converts it to ...B. form before giving it as an input to the ...C.... Here, A, B and C refer to

Calcium carbonate can be prepared by passing carbon dioxide through ….A.. Or by the addition of sodium carbonate to ….B…. Here, A and B refer to

MHTCET PREVIOUS YEAR PAPERS AND PRACTICE PAPERS-D - AND F-BLOCK ELEMENTS-Practice exercise (Exercise 1)
  1. An explosion takes place when conc. H2SO4 is added to KMnO4. Which of ...

    Text Solution

    |

  2. The outer electronic configuration of Gd (At.No. 64) is

    Text Solution

    |

  3. Identify the incorrect statement among the following.

    Text Solution

    |

  4. The atomic size of cerium and promethium is quite close, because

    Text Solution

    |

  5. The lanthanide contraction relates to

    Text Solution

    |

  6. Because of lanthnoid contraction, which of the following pairs of elem...

    Text Solution

    |

  7. Ln^(3+) (trivalent lanthanides ions ) have electronic configuration.

    Text Solution

    |

  8. The basicity of lanthanoid hydroxides, across the lanthanoid series

    Text Solution

    |

  9. There are 14 elements in actinoid series. Which of the following eleme...

    Text Solution

    |

  10. lanthanoid contraction, the unique in the chemistry of lanthanoids, is...

    Text Solution

    |

  11. Misch metal is

    Text Solution

    |

  12. Consider the following statements, (I) La(OH)(3) is the least basi...

    Text Solution

    |

  13. Which one of the following exists in the oxidation state other than +3...

    Text Solution

    |

  14. The radius of La^(+) (at no 57) is 1.06Å. What may be the radius of Lu...

    Text Solution

    |

  15. Lanthanoid contraction is caused due to:

    Text Solution

    |

  16. Match the Column and choose the correct option from codes given below.

    Text Solution

    |

  17. Which of the following ion acts as an oxidising agent?

    Text Solution

    |

  18. Which of the following has got incompletely filled f-subshell?

    Text Solution

    |

  19. The first ionsation enthalpies of the lanthanoids are around…A….,the s...

    Text Solution

    |

  20. Knowing that the Chemistry of lanthanoids (Ln) is dominated by its+3 o...

    Text Solution

    |