Home
Class 11
CHEMISTRY
The value of n in the equation, Cr(2)O...

The value of n in the equation,
`Cr_(2)O_(7)^(2-) +14 H^(+)+ne^(-) to 2Cr^(3+) + 7H_(2)O` is :

A

2

B

3

C

4

D

6

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • VOLUMETRIC ANALYSIS

    OP TANDON|Exercise Assertion-Reason Type Questions|10 Videos

  • VOLUMETRIC ANALYSIS

    OP TANDON|Exercise Integer Answer Type Questions|3 Videos

  • VOLUMETRIC ANALYSIS

    OP TANDON|Exercise Objective Question (Level-A)|99 Videos

  • THE COLLOIDAL STATE

    OP TANDON|Exercise Self Assessment|21 Videos

Similar Questions

Explore conceptually related problems

The values of n in the following equation is Cr_(2)O_(7)^(2-) + 14H^(+) + nFe^(2+) to 2Cr^(3-) + nFe^(3+) + 7H_(2)O

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

In acidic medium potassium dichromate acts as on oxidant according to the equation, Cr_(2) O + 14 H^(+) + 6e^(-)rarr 2Cr^(3+) + 7H_(2)O . What is the equivalent weight of K_(2) Cr_(2) O_(7) ? (mol. Wt. = M)

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-) ?

Complete the chemical equations : Cr_2O_7^(2-) + H^(+) + I^(-) to

OP TANDON-VOLUMETRIC ANALYSIS-Objective Question (Level-B)
  1. The value of n in the equation, Cr(2)O(7)^(2-) +14 H^(+)+ne^(-) to 2...

    Text Solution

    |

  2. The number of moles of acidified KMnO(4) required to oxidise one mole ...

    Text Solution

    |

  3. A solution contains Na(2)CO(3) " and " NaHCO(3). 10 mL of the solution...

    Text Solution

    |

  4. V(1) mL of NaOH of normality x and V(2) mL of Ba(OH)(2) of normality y...

    Text Solution

    |

  5. A 0.518 g sample of limestone is dissolved in HCl and then the calcium...

    Text Solution

    |

  6. When 40 mL of 0.1 N HCl and 20 mL of 0.1 M H(2)SO(4) are mixed togethe...

    Text Solution

    |

  7. What is the normality of 0.3 M H(3)PO(4) when it undergoes the reactio...

    Text Solution

    |

  8. In the mixture of (NaHCO(3) + Na(2)CO(3)), volume of HCl required is x...

    Text Solution

    |

  9. 40 mL of 0.05 M Na(2)CO(3). NaHCO(3). 2H(2)O (sesquicarbonate ) is tit...

    Text Solution

    |

  10. Equivalent mass of H(3)PO(2) when it disproportionates into PH(3) " an...

    Text Solution

    |

  11. The reagent commonly used to determine harness of water titrimetricall...

    Text Solution

    |

  12. The equivalent mass of sodium thiosulphate (Na(2)S(2)O(3). 5H(2)O) in ...

    Text Solution

    |

  13. If 100 mL of the acid is neutralised by 100 mL of 4 M NaOH, the purity...

    Text Solution

    |

  14. 2 moles of FeSO(4) are oxidised by x moles of KMnO(4) in acid medium i...

    Text Solution

    |

  15. What volume of 0.05 M Cr(2)O(7)^(2-) in acid medium is needed for comp...

    Text Solution

    |

  16. KMnO(4) reacts with oxalic acid according to the reaction : 2KMnO(4)...

    Text Solution

    |

  17. Potassium permanganate is titrated against ferrous ammonium sulphate i...

    Text Solution

    |

  18. Number of moles of K(2)Cr(2)O(7) that can be reduced by 1 mole of Sn^(...

    Text Solution

    |

  19. Potassium permanganate acts as an oxidising agent in acidic, alkaline ...

    Text Solution

    |

  20. The number of equivalents of Na(2)S(2)O(3) required for the volumetric...

    Text Solution

    |