Home
Class 12
CHEMISTRY
In the form of dichromate, Cr(VI) is a s...

In the form of dichromate, Cr(VI) is a strong oxidising agent in acidic medium but Mo(VI) in `Mo0_(3)` and W(VI) in `W0_(3)` are not because

A

`Cr(VI)` is more stable than `Mo(VI)` and `W(VI)`

B

`MO(VI)` and `W(VI)` are more stable than `Cr(VI)`

C

Higher oxidation states of heavier members of group 6 of transition series are more stable

D

Lower oxidation states of hevier members of group 6 transition series are more stable

Text Solution

Verified by Experts

The correct Answer is:
B, C
Promotional Banner

Topper's Solved these Questions

  • D BLOCK & TRANSITION ELEMENTS

    NARAYNA|Exercise Level-V (H.W)|47 Videos

  • D - BLOCK ELEMENTS

    NARAYNA|Exercise CHECK YOUR GRASP|7 Videos

  • ELECTRO CHEMISTRY

    NARAYNA|Exercise EXERCISE - IV|44 Videos

Similar Questions

Explore conceptually related problems

Assertion : Cr(VI) in the form of dichromate in acidic medium is a strong oxidising agent where MoO_3 and WO_3 are not. Reason: In d-block elements higher oxidation states are favoured by heavier members.

KMnO_(4) is a strong oxidising agent in acidic medium. To provide acidic medium H_(2)SO_(4) is used instead of HCl. This is because

Potassium dichromate acts as a strong oxidising agent in the acidic medium. When heated with a metal chloride and conc. sulphuric acid, it gives orange red fumes. On passing these fumes through sodium hydroxide, it gives a yellow solution (X) and this acidified solution gives yellow precipitate (Y) with lead acetate. On heating potassium dichromate with KOH, it forms a yellow solution (Z) which on acidification changes to orange colour. Acidified solution of dichromate ion gives deep blue colour with H_2O_2 due to the formation of (P) The oxidation state of Cr in compound P

Assertion : KMn0_(4) is an oxidising agent in neutral, acidic and alkaline medium. Reason : Equivalent mass of KMn0_(4) in acidic medium is 31 ·6.

NARAYNA-D BLOCK & TRANSITION ELEMENTS-Level-VI (H.W)
  1. Which are the best suitable as coinage metals?

    Text Solution

    |

  2. Paramagnetism is exhibited by :

    Text Solution

    |

  3. In the form of dichromate, Cr(VI) is a strong oxidising agent in acidi...

    Text Solution

    |

  4. The diamagnetic compounds is/are

    Text Solution

    |

  5. The colour of the transition metal ions is due to

    Text Solution

    |

  6. Select the correct statement(s) with respect to oxides and oxoanions o...

    Text Solution

    |

  7. In which of the following compounds (s), the colour is due to the char...

    Text Solution

    |

  8. Transition element act as good catalysts because

    Text Solution

    |

  9. The true statement among the following are:

    Text Solution

    |

  10. Which of the following oxides are amphoteric?

    Text Solution

    |

  11. Which of the following are nonferrous alloys?

    Text Solution

    |

  12. In the formation of intersitital compounds by transition metals, ident...

    Text Solution

    |

  13. Which of the following is/are correct about Wilkinson's catalyst?

    Text Solution

    |

  14. Which of the following statement(s) is /are correct for the alloys, br...

    Text Solution

    |

  15. The E^(0) values are Zn^(2+)//Zn:-0.76V,Fe^(2+)//Fe:-0.44V, Ni^(2...

    Text Solution

    |

  16. The E^(0) values are Zn^(2+)//Zn:-0.76V,Fe^(2+)//Fe:-0.44V, Ni^(2...

    Text Solution

    |

  17. The E^(0) values are Zn^(2+)//Zn:-0.76V,Fe^(2+)//Fe:-0.44V, Ni^(2...

    Text Solution

    |

  18. The transition metals and their compounds have paramagnetic properties...

    Text Solution

    |

  19. The transition metals and their compounds have paramagnetic properties...

    Text Solution

    |

  20. The transition metals and their compounds have paramagnetic properties...

    Text Solution

    |