Home
Class 12
CHEMISTRY
The oxidation state of Cr in Cr(2)O(7)^(...

The oxidation state of `Cr` in `Cr_(2)O_(7)^(2-)` is

A

`+2`

B

`+6`

C

`-6`

D

`-4`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • REDOX REACTIONS

    ALLEN|Exercise EXERICSE - 4|27 Videos

  • REDOX REACTIONS

    ALLEN|Exercise EXERICSE - 2|50 Videos

  • Redox Reaction

    ALLEN|Exercise All Questions|15 Videos

  • s-Block element

    ALLEN|Exercise All Questions|13 Videos

Similar Questions

Explore conceptually related problems

In acidic medium, H_(2)O_(2) changes Cr_(2)O_(7)^(2-) ion to CrO_(5) . The oxidation states of Cr in Cr_(2)O_(7)^(2-) and CrO_(5) are respectively :

The oxidation state of Cr in K_(2)Cr_(2)O_(7) is:

A: In CrO_(5) oxidation state of Cr is +10 R: Cr_(2)O_(7)^(2-) (aq) is yellow in colour

The oxidation states of Cr in [Cr(H_(2)O)_(6)]Cl_(3). [Cr(C_(6)H_(6))_(2)] and K_(2)[Cr(CN)_(2)(O)_(2)(O_(2))(NH_(3))] respectively are

Write oxidation number of Cr in Cr_(2)O_(7)^(2–) .

ALLEN-REDOX REACTIONS-EXERICSE - 3
  1. If in chemical reaction, Fe^(+2) is converted into Fe^(+3), then Fe^(+...

    Text Solution

    |

  2. Zn+H(2)SO(4)rarrZnSO(4)+H(2) Zn undergoes -

    Text Solution

    |

  3. The oxidation state of Cr in Cr(2)O(7)^(2-) is

    Text Solution

    |

  4. The number of moles of KMnO(4) reduced by 1 "mol of" KI in alkaline me...

    Text Solution

    |

  5. The correct order of acidic strength is -

    Text Solution

    |

  6. Number of moles of MnO(4)^(-) required to oxidise one mole of ferrous ...

    Text Solution

    |

  7. Oxidation number of P in PO(4)^(3-), of S in SO(4)^(2-) and that of Cr...

    Text Solution

    |

  8. What will be the oxidation number of Fe in K(3)[Fe(CN)(6)] :-

    Text Solution

    |

  9. In the reaction 2FeCl(3)+H(2)Srarr2FeCl(2)+2HCl+S

    Text Solution

    |

  10. For the redox reation MnO(4)^(-)+C(2)O(4)^(2-)+H^(+)rarrMn^(2+)CO(2)...

    Text Solution

    |

  11. Which of the following act both as oxidant & reductant :-

    Text Solution

    |

  12. Which of the following reaction is spontaneous oxidation - reduction r...

    Text Solution

    |

  13. For reaction : Cr(2)O(7)^(-2)+14H^(+)rarr2Cr^(+3)+7H(2)O, How many e...

    Text Solution

    |

  14. Oxidising agents have high :-

    Text Solution

    |

  15. The ratio of coefficient of HNO(3), Fe(NO(3))(2) and NH(4)NO(3) in the...

    Text Solution

    |

  16. Oxidation number of chlorine in perchloric acid is :-

    Text Solution

    |

  17. Correct order of oxidising strength is :-

    Text Solution

    |

  18. When S(2)O(8)^(2-) oxidise Fe^(2+) then product formed is :-

    Text Solution

    |

  19. The oxidation state of sulhur in H(2)SO(5) and chromium in K(2)Cr(2)O(...

    Text Solution

    |

  20. How much amount of CuSO(4).5H(2)O required for liberation of 2,55gI(2)...

    Text Solution

    |