Home
Class 12
CHEMISTRY
Can the reaction Cr(2)O(7)^(2-)+H(2)O ra...

Can the reaction `Cr_(2)O_(7)^(2-)+H_(2)O rarr 2CrO_(4)^(2-)+2H^(+)` be regarded as a redox reaction?

Text Solution

Verified by Experts

Oxidation number of Cr in `Cr_(2)O_(7)^(2-)=+6` oxidation number of Cr in `CrO_(4)^(2-)=+6`
Since during this reaction the oxidation number of Cr has neither decreased nor increased therefore the above reaction cannot be regarded as a redox reaction
Promotional Banner

Topper's Solved these Questions

  • REDOX REACTIONS

    PRADEEP|Exercise NCERT (QUESTIONS AND EXERCISES WITH ANSWERS)|10 Videos

  • REDOX REACTIONS

    PRADEEP|Exercise NCERT(EXERCISE)|30 Videos

  • REDOX REACTIONS

    PRADEEP|Exercise Fill In Th Blanks|10 Videos

  • POLYMERS

    PRADEEP|Exercise IMPORTANT Questions (For Board Examination)|27 Videos

  • SOLUTIONS

    PRADEEP|Exercise IMPORTANT QUESTIONS FOR BOARD EXAMINATION|31 Videos

Similar Questions

Explore conceptually related problems

The reaction : Cr_2O_7^(2-) +H_2OhArr 2CrO_4^(2-) +2H^(+) cannot be regarded as a redox reaction . True or False

In the reaction, Cr_(2)O_(7)^(2-)+H_(2)O to 2CrO_(4)^(2-)+2H^(+) Cr undergoes

The [CrO_(4)^(2-)] ions are equilibrium for the reaction, Cr_(2)O_(7)^(2-)+H_(2)Oharr2CrO_(4)^(2-)+2H^(+), "at" pH=4 is:

For the redox reaction Cr_(2)O_(7)^(-2)+H^(+)+Ni rarr Cr^(3)+Ni^(2+)+H_(2)O The correct coefficents of the reactions for the balanced reaction are

The dichromate ion is in cquilibrium with chromate ion in aqucous Solution as: Cr_(2)O_(7)^(2-) (aq) + H_(2)O hArr 2 CrO_(4)^(2-)(aq) + 2H^(+)(aq) The oxonion has

The reaction 2H_(2)O_(2) rarr 2H_(2)O+O_(2) is r=k[H_(2)O_(2)]

Cr_(2)O_(5)^(-2)rarr CrO_(4)^(-2) In the above reaction the change in oxidation number is

In the following reaction 2I- + Cr_(2)O_(7)^(2-)+14H^(+) rarr I_(2)+2Cl^(3)+7H_(2)O Unbalanced parts are

For reaction : Cr_(2)O_(7)^(-2)+14H^(+)rarr2Cr^(+3)+7H_(2)O , How many e^(-)s are required

Consider the reaction : Cr_(2)O_(7)^(2-)+14H^(+)+6e^(-) rarr 2Cr^(3+)+7H_(2)O What is the quantity of electricity in coulombs needed to reduce 1 mol e of Cr_(2)O_(7)^(2-) ?

PRADEEP-REDOX REACTIONS -Conceptual Question
  1. What is the name of the reaction 2CH(3)CH(2)CH2SH rarr CH(3)CH(2)CH(2)...

    Text Solution

    |

  2. Write the following redox reactions using half equations: a. Zn(s)+P...

    Text Solution

    |

  3. Photosynthesis involves the following overall reaction 6CO(2)+6H(2)O...

    Text Solution

    |

  4. Chlorine dioxide (CIO(2)) is used to kill bacteria in mett soft drinks...

    Text Solution

    |

  5. What is the maximum nad minimum oxidation states for Na Mg AI Sn and M...

    Text Solution

    |

  6. What are the maximum and minimum oxidation numbers of N, S and Cl ?

    Text Solution

    |

  7. Nitric acid acts as an oxidising agent while nitrous acid can act both...

    Text Solution

    |

  8. How does Cu(2)O acts as both oxidant and reductant ? Explain with prop...

    Text Solution

    |

  9. Can the reaction Cr(2)O(7)^(2-)+H(2)O rarr 2CrO(4)^(2-)+2H^(+) be rega...

    Text Solution

    |

  10. Find out the oxidation numbers of (i) S atoms in Na(2)S(2)O(3) and CI...

    Text Solution

    |

  11. Find out the oxidation states of two types of Fe atoms in Fe(4)[Fe(CN)...

    Text Solution

    |

  12. An iron rod is immersed in a solution containing 1.0 M NiSO(4) and 1.0...

    Text Solution

    |

  13. The standard electrode potential of four metallic elements (A, B, C an...

    Text Solution

    |

  14. I(2) and Br(2) are added to a solution containing Br^(-) and T^(-) ion...

    Text Solution

    |

  15. The oxides of Cl, Br and I are well known. They have various compositi...

    Text Solution

    |

  16. Copper dissolves in dilute Nitric acid but not in dilute HCl. Why?

    Text Solution

    |

  17. The standard electrode potential corresponding to the reaction Au^(3+)...

    Text Solution

    |

  18. Is it possible to store: (i) Copper sulphate solution in a zinc vessel...

    Text Solution

    |

  19. The standard electrode potentials at 298 K are given below: E(Zn^(2+)|...

    Text Solution

    |