Home
Class 12
CHEMISTRY
Which of the fo llowing statements is co...

Which of the fo llowing statements is correct?

A

Oxidation numberofoxygen in `KO_(2)` is +1

B

The specific conductance of an electrolyte solution decreases with increase in dilution

C

`Sn^(2+)` oxidises `Fe^(3+)`

D

`Zn//Zn SO_(4)` is a refcrence electrode

Text Solution

Verified by Experts

The correct Answer is:
B

Specific conductance decreases with dilution
Promotional Banner

Topper's Solved these Questions

  • COORDINATION COMPOUNDS

    DISHA|Exercise MCQ|45 Videos
  • ENVIRONMENTAL CHEMISTRY

    DISHA|Exercise CHEMISTRY|43 Videos
DISHA-ELECTROCHEMISTRY -CHEMISTRY
  1. Given: E(Cr^(3+)//Cr)^(@)=1.33 V, E(Cl//Cl^(-))^(@) =1.36V CIBased o...

    Text Solution

    |

  2. The standard electrode potentials (E(M^(+)//M)^(@)) of four metals A,...

    Text Solution

    |

  3. Which of the fo llowing statements is correct?

    Text Solution

    |

  4. Molar ionic conductivities of a two-bivalent electrolytes x ^(2+) and ...

    Text Solution

    |

  5. Thecell, Zn|Zn^(2+)(1M)||Cu^(2+)(1M) |Cu (E("cell")^(@)=1.10V) was all...

    Text Solution

    |

  6. Which of the following statements is true for an electrochemical cell?

    Text Solution

    |

  7. Given Fe^(3+)(aq)+e ^(-)toFe ^(2+)(aq), E ^(@) =+0.77V Al ^(3+) (a...

    Text Solution

    |

  8. Standard free energies of formation (in kJ/mol) at 298 K are -237.2, -...

    Text Solution

    |

  9. Given E(Cr^(3+)//Cr)^(@)=-0.72 V, E(Fe ^(2+)//Fe)^(@)=-0.42V. The pot...

    Text Solution

    |

  10. Electrolysis of dilute aqueous NaCl solution was carried out by passin...

    Text Solution

    |

  11. Which of the following reaction occurs at the cathode during the charg...

    Text Solution

    |

  12. Conductanceof 0.1 MKCl (condiuctivity = X ohm^(-1)cm^(-1)) filled in a...

    Text Solution

    |

  13. How much charge is required, when 1 mole of Cr(2)O(7)^(2-) reduce to f...

    Text Solution

    |

  14. In electrolysis of dilute H(2)SO(4) using platinum electrodes

    Text Solution

    |

  15. The resistance of 0.1 N solution of a salt is found to be 2.5xx 10^(3)...

    Text Solution

    |

  16. The highest electrical conductivity of the following aqueous solutions...

    Text Solution

    |

  17. When during electrolysis of a solution of AgNO(3) 9650 coulombs of cha...

    Text Solution

    |

  18. The reduction potential ofhydrogen half-cell will be negative if:

    Text Solution

    |

  19. When electric current is passed through acidified water, 1 12 mL of hy...

    Text Solution

    |

  20. An electrolytic cell contains a solution of Ag(2)SO(4) and platinum el...

    Text Solution

    |