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 clectrons in the outermost subshell.

D

their d-shells are incomplete

Text Solution

Verified by Experts

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

Topper's Solved these Questions

  • THE D- AND F- BLOCK ELEMENTS

    DISHA PUBLICATION|Exercise EXERCISE - 1 CONCEPT BUILDER (TOPIC 3: LANTHANOIDS AND ACTINOIDS)|20 Videos

  • SURFACE CHEMISTRY

    DISHA PUBLICATION|Exercise Exercise-2 :Concept Applicator|30 Videos

  • The p-Block Elements (Group 13 and Group 14)

    DISHA PUBLICATION|Exercise Exercise-2: Concept Applicator|30 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

DISHA PUBLICATION-THE D- AND F- BLOCK ELEMENTS -EXERCISE - 2 CONCEPT APPLICATOR
  1. Four successive members of the first row transition elements are liste...

    Text Solution

    |

  2. Which of the following does not represent the correct order of the pro...

    Text Solution

    |

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

    Text Solution

    |

  4. Which of the following statement is incorrect

    Text Solution

    |

  5. A compound of iron exists as a dimer in vapour state. It is hygroscopi...

    Text Solution

    |

  6. Which of the following statements is wrong ?

    Text Solution

    |

  7. A metal M and its compounds can gives the following observable changes...

    Text Solution

    |

  8. Which tow sets of reactants best represents the amphoteric character o...

    Text Solution

    |

  9. Copper is very slowly oxidised on the surface in moist air, givinga gr...

    Text Solution

    |

  10. A red solid is insoluble in water. However, it becomes soluble if some...

    Text Solution

    |

  11. Which of the following reactions represents " developing"in photograph...

    Text Solution

    |

  12. In the extraction of silver from argentite ore the ore is treated witl...

    Text Solution

    |

  13. The dichromate ion is in cquilibrium with chromate ion in aqucous Solu...

    Text Solution

    |

  14. A blue colouration is not obtained when

    Text Solution

    |

  15. When potassium ferrocyanide crystals are heated with conc. sulphuric a...

    Text Solution

    |

  16. Precipitate of AgCl is soluble in liquid NH(3) the compound forms

    Text Solution

    |

  17. Which of the following products are obtained when Na2CO3 is added to a...

    Text Solution

    |

  18. Which of the following statement is not correct?

    Text Solution

    |

  19. The reason for the stability of Gd^(3-) ion is

    Text Solution

    |

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

    Text Solution

    |