Home
Class 12
CHEMISTRY
An acidic solution of dichromate is elec...

An acidic solution of dichromate is electrolyzed for 8 minutes using 2A current. As per the following equation `Cr_2 O_7^(2-) + 14 H^+ + 6 e^- to 2Cr^(3+) + 7H_2 O`
The amount of `Cr^(3+)` obtained was 0.104 g. The efficiency of the process (in %) is (Take : F= 96000 C, At. mass of chromium = 52) __________.

Text Solution

AI Generated Solution

Promotional Banner

Topper's Solved these Questions

  • JEE MAINS 2020

    JEE MAINS PREVIOUS YEAR|Exercise CHEMSITRY|25 Videos

  • JEE MAINS

    JEE MAINS PREVIOUS YEAR|Exercise QUESTION|1 Videos

  • JEE MAINS 2021

    JEE MAINS PREVIOUS YEAR|Exercise Chemistry (Section B )|10 Videos

Similar Questions

Explore conceptually related problems

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

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

In the dichromate anion (Cr_2O_7^(2-))

In the reaction Cr_2 O_7^(2-) 14 H^(+) + 6e^(-) rarr 2 Cr^(3+) + 7 H_2O , the equivalent weight fo K_2 Cr_2 O_7 will be .

In the reaction: Cr_(2)O_(7)^(2-) + 14H^(o+) + 6I^(Ө) rarr2Cr^(3+) + 3H_(2)O + 3I_(2) Which element is reduced?

Balance the following equation stepwise: Cr_(2)O_(7)^(2-) + Fe^(2+)++H^(o+)rarrCr^(3+) + Fe^(3+) + H_(2)O

JEE MAINS PREVIOUS YEAR-JEE MAINS 2020-CHEMSITRY
  1. An acidic solution of dichromate is electrolyzed for 8 minutes using 2...

    Text Solution

    |

  2. The correct statement with respect to dinitrogen is :

    Text Solution

    |

  3. Consider the following reactions :

    Text Solution

    |

  4. The major product obtained from the following reaction is :

    Text Solution

    |

  5. A solution of two components containing n1 moles of 1^(st) component a...

    Text Solution

    |

  6. The INCORRECT statement is :

    Text Solution

    |

  7. Consider the Assertion and Reason given below. Assertion (A) : Ethe...

    Text Solution

    |

  8. Arrange the following solutions in the decreasing order of pOH : (A...

    Text Solution

    |

  9. Among the sulphates of alkaline earth metals the solubilities of BeSO4...

    Text Solution

    |

  10. The major products of the following reaction are : CH3 -overset(CH...

    Text Solution

    |

  11. The major product of the following reaction is :

    Text Solution

    |

  12. The presence of soluble fluoride ion upto 1 ppm concentration in drink...

    Text Solution

    |

  13. The increasing order of pKb values of the following compounds is :

    Text Solution

    |

  14. Which of the following compounds shows geometrical isomerism ?

    Text Solution

    |

  15. The set that contains atomic numbers of only transition elements , is ...

    Text Solution

    |

  16. The variation of equilibrium constant with temperature is given below ...

    Text Solution

    |

  17. Kraft temperature is the temperature :

    Text Solution

    |

  18. For the reaction Fe2N(s)+(3)/(2)H2(g)=2Fe(s)+NH3(g)

    Text Solution

    |

  19. The species that has a spin -only magnetic moment of 5.9 BM , is : (...

    Text Solution

    |

  20. The lanthanoid that does NOT show +4 oxidation stat is :

    Text Solution

    |

  21. Consider the following reaction A to P1, B to P2 , C to P3 , D to P4...

    Text Solution

    |