Home
Class 12
CHEMISTRY
In acidic medium, H(2)O(2) changes Ce(2)...

In acidic medium, `H_(2)O_(2)` changes `Ce_(2)O_(7)^(2-)` to `CrO_(5)` which has two `(-O-O-)` bonds. Oxidation state of Cr in `CrO_(5)` is

A

`+5`

B

`+3`

C

`+6`

D

`-10`

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • REDOX REACTIONS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION - D|10 Videos
  • REDOX REACTIONS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGNMENT SECTION - B|20 Videos
  • PRINCIPLES OF QUALITATIVE ANALYSIS

    AAKASH INSTITUTE ENGLISH|Exercise Assignment (SECTION H)|9 Videos
  • SOLUTIONS

    AAKASH INSTITUTE ENGLISH|Exercise ASSIGMENT (SECTION-J) AAKASH CHALLENGERS QUESTIONS|10 Videos

Similar Questions

Explore conceptually related problems

In acidic medium, H_(2)O_(2) changes Cr_(2)O_(7)^(2-) to CrO_(5) which has two (-O-O-) bonds. Oxidation state of Cr in CrO_(5) is

In acidic medium, H_(2)O_(2) changes Cr_(2)O_(7)^(2-) to CrO_(5) which has two (-O-O-) bonds. Oxidation state of Cr in CrO_(5) is

The oxidation state of Cr in CrO_5 is

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

Oxidation state exhibited by Cr in K_(2)CrO_(4) is

Find the oxidation number of: Cr in K_(2)Cr_(2)O_(7)

K_(2)Cr_(2)O_(7)+NaoH to CrO_(4)^(2-)

K_(2)Cr_(2)O_(7)+NaoH to CrO_(4)^(2-)

Assertion : Out of CrO_(3)& Al_(2)O_(3), CrO_(3) having lower melting point than Al_(2)O_(3) . Reason: Oxidation state of Cr in CrO_(3) is high

Na_(2)CrO_(4)+HCl to H_(2)Cr_(2)O_(7)+Na_(2)SO_(4)

AAKASH INSTITUTE ENGLISH-REDOX REACTIONS-ASSIGNMENT SECTION - C
  1. In which of the following compounds, oxygen exhibits highest oxidation...

    Text Solution

    |

  2. A solution contains Fe^(2+), Fe^(3+) and T^(-) ions. This solution was...

    Text Solution

    |

  3. Oxidation states of P in H(4)P(2)O(5),H(4)P(2)O(6),H(4)P(2)O(7) respec...

    Text Solution

    |

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

    Text Solution

    |

  5. The number of moles of KMnO(4) that will be needed to react with one ...

    Text Solution

    |

  6. Standard reduction potentials of the half reactions are given below ...

    Text Solution

    |

  7. Standard electrode potential for Sn^(4+)//Sn^(2+) couple is 0.15 V and...

    Text Solution

    |

  8. Standard electrode potential of three metal X, Y and Z are -1.2 V, +0....

    Text Solution

    |

  9. In the reaction 2H(2)O(2) rarr 2H(2)O+O(2)

    Text Solution

    |

  10. Which change requires an oxidising agent?

    Text Solution

    |

  11. Given the following reaction involving A,B,C and D (i) C+B^(+)...

    Text Solution

    |

  12. Which element undergoes disproportionation in water ?

    Text Solution

    |

  13. Standard reduction potential at 25^(@)C of Li^(+)//Li,Ba^(+)//Ba,Na^(+...

    Text Solution

    |

  14. Which species is acting as a reducing agent in the following reaction ...

    Text Solution

    |

  15. The oxidant which cannot act as a reducing agent is

    Text Solution

    |

  16. Oxidation state of Fe in Fe(3)O(4) is

    Text Solution

    |

  17. Oxidation numbers of A, B, C are +2, +5 and -2 respectively. Possible ...

    Text Solution

    |

  18. The oxidation states of sulphur in the anions SO(3)^(2-), S(2)O(4)^(2-...

    Text Solution

    |

  19. Reduction potential for the following half-cell reaction are Zn rarr...

    Text Solution

    |

  20. In acidic medium, H(2)O(2) changes Ce(2)O(7)^(2-) to CrO(5) which has ...

    Text Solution

    |