Home
Class 12
CHEMISTRY
Zn and Hg do not show variable valency l...

`Zn` and `Hg` do not show variable valency like `d-`block elements because-

A

They are soft

B

Their d-shells are complete

C

They have only two electrons in the outemost subshell

D

Their d-shell are incomplete

Text Solution

Verified by Experts

The correct Answer is:
B
`""_(30)Zn and ""_(80)Hg` have their d orbitals completely filled so thy do not show any variable valency.
Promotional Banner

Topper's Solved these Questions

  • COMPOUNDS CONTAINING NITROGEN

    NIKITA PUBLICATION|Exercise MCQ|418 Videos

  • ELECTROCHEMISTRY

    NIKITA PUBLICATION|Exercise Questions From Competitive Exam|46 Videos

Similar Questions

Explore conceptually related problems

Does copper show variable valency ?

The following does not show variable valency

Zinc does not show variable valency Because of:

The one which does not show variable valency is

NIKITA PUBLICATION-D-AND F-BLOCK ELEMENTS-MULTIPLE CHOICE QUESTIONS
  1. The purple colour of [Ti (H(2)O)(6)]^(+3) ion is due to

    Text Solution

    |

  2. From +6 to +1 oxidation state is shon by the element of …… group

    Text Solution

    |

  3. Zn and Hg do not show variable valency like d-block elements because-

    Text Solution

    |

  4. The number of unpaired electrons in cobalt atoms is (atomic number of ...

    Text Solution

    |

  5. Cuprous ion is colourless, while cupric ion is colured because

    Text Solution

    |

  6. The valence shell of transition element consists of

    Text Solution

    |

  7. Transition metal usually exhibit highest oxidation states in their

    Text Solution

    |

  8. The catalytic activity of the transition metals and their compound is ...

    Text Solution

    |

  9. In the ground state, an element has 13 electrons in its 'M' shell. The...

    Text Solution

    |

  10. In the ground state configuration of Co, how many electrons are presen...

    Text Solution

    |

  11. If the colours of salts of transition elements are due to the presence...

    Text Solution

    |

  12. The transition elements are so named because

    Text Solution

    |

  13. The atomic radii of transition series elements

    Text Solution

    |

  14. Which one of the following elements exhibits highest valency ?

    Text Solution

    |

  15. Which one of the following statements is false ?

    Text Solution

    |

  16. Which of the following ions has d^(5) electronic configureation ?

    Text Solution

    |

  17. Which of the following ions is colourless ?

    Text Solution

    |

  18. maximum number of variable oxidation state in a transition series are ...

    Text Solution

    |

  19. Which of the following metals exhibits more than one oxidation state ?

    Text Solution

    |

  20. Which of the following species is expected to be paramagnetic ?

    Text Solution

    |