Home
Class 12
CHEMISTRY
On electrolysing K(2)SO(4) solution usin...

On electrolysing `K_(2)SO_(4)` solution using inert electrodes, `1.68L(STP)` of gases was obtained. How many moles of `MnO_(4)^(-)` could be reduced to `Mn^(2+)` by the same quantity of electricity?

A

`0.02`

B

`0.15`

C

`0.20`

D

`0.10`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELECTRO CHEMISTRY

    NARAYNA|Exercise LEVEL-II(C.W)|61 Videos
  • ELECTRO CHEMISTRY

    NARAYNA|Exercise LEVEL-III|57 Videos
  • ELECTRO CHEMISTRY

    NARAYNA|Exercise C.U.Q|84 Videos
  • 15TH GROUP ELEMENTS

    NARAYNA|Exercise EXERCISE - 4 (NCERT EXEMPLERS/HOTs)|27 Videos

Similar Questions

Explore conceptually related problems

How many moles of K_(2)Cr_(2) O_(7) are reduced by 1 mole of formic acid -

How many moles of H_(2)SO_(4) can be reduced to SO_(2) by 2 moles of Aluminium? (a) 4 (b) 3 (c)8 (d) 6

Number of coulombs required to reduce on e mole of MnO_(4)^(-) to Mn^(2+)

How many faradays are required to reduce one moleof MnO_(4)^(-) to Mn^(2+) ?

How many Faradays are needed to reduce 1 mole of MnO_(4)^(-) to Mn^(2+) ?

How many faradays are required to reduce one "mole" of MnO-(4)^(-) to Mn^(2+) ?

The charge required for reducing 1 mole of MnO_4^(-) to Mn^(2+) is

NARAYNA- ELECTRO CHEMISTRY-LEVEL-I(C.W)
  1. According of Kohlrausch law, the limiting value of molar conductivity ...

    Text Solution

    |

  2. Molar conductance of BaCl(2),H(2)SO(4) and HCl at infinite dilutions a...

    Text Solution

    |

  3. The SRP values of Ag^(+)//Ag and Zn^(2+)//Zn electrodes are 0.80V and ...

    Text Solution

    |

  4. Which of the following is most powerful oxidizing agent?

    Text Solution

    |

  5. The standard reduction potentials of Cu^(=2),Ag^(+),Hg^(+2) and Mg^(+2...

    Text Solution

    |

  6. Which metal pairs when coupled will get maximum emf for a voltaic cell

    Text Solution

    |

  7. The standard reduction potentials at 298K, for the following half cell...

    Text Solution

    |

  8. Cu-2e^(-)rarrCu^(2+),E^(@)=-0.347V Sn-2e^(-)rarrSn^(2+),E^(@)=+0.143...

    Text Solution

    |

  9. The voltage of a cell whose half-cells are given below is Mg^(2+)+2e...

    Text Solution

    |

  10. The standard reduction potentials of Ag, Cu, Co and Zn are 0.799,0.337...

    Text Solution

    |

  11. When zinc is added to CuSO(4) solution, copper is precipitated. It is ...

    Text Solution

    |

  12. Consider the following four electrodes: A=Cu^(2+)(0.0001M)//Cu((s)) ...

    Text Solution

    |

  13. Which of the following is always true regarding the spontaneity of rea...

    Text Solution

    |

  14. The reduction potential of hudrogen electrode is- 118 mV. The concentr...

    Text Solution

    |

  15. E^(@) for F(2)+2e^(-) hArr 2F^(-) is 2.8V,E^(@) for (1)/(2)F+e^(-)=F^(...

    Text Solution

    |

  16. On electrolysing K(2)SO(4) solution using inert electrodes, 1.68L(STP)...

    Text Solution

    |

  17. In which of the following cells reactants are not contained within the...

    Text Solution

    |

  18. Zins corrodes in

    Text Solution

    |

  19. Iron rod is immersed in Kcl solution such that half its length is expo...

    Text Solution

    |

  20. The factors that promote electrochemical corrosion are

    Text Solution

    |