Home
Class 12
CHEMISTRY
Select the wrong statement....

Select the wrong statement.

A

The electrolysis of molten `CaH_(2)` liberates `H_(2)` at cathode

B

During the discharge of lead storage battery, sulphuric acid is consumed.

C

Sulphur acts as a polymerizing agent in the vulcanization of rubber.

D

Galvanization of iron denotes coating with `Zn`.

Text Solution

Verified by Experts

The correct Answer is:
a

Statement `(a)` is wrong.
`2H^(c-)overset(At)underset(anode)rarrH_(2)+2e^(-), ` not at cathode
Promotional Banner

Topper's Solved these Questions

  • ELECTROCHEMISTRY

    CENGAGE CHEMISTRY|Exercise Exerciseassertion -Reasoning|25 Videos
  • ELECTROCHEMISTRY

    CENGAGE CHEMISTRY|Exercise Exerciseinterger|8 Videos
  • ELECTROCHEMISTRY

    CENGAGE CHEMISTRY|Exercise Exercisemultiple Correct Ansers|53 Videos
  • D AND F BLOCK ELEMENTS

    CENGAGE CHEMISTRY|Exercise Archives Subjective|29 Videos
  • GENERAL PRINCIPLES AND PROCESS OF ISOLATION OF ELEMENTS

    CENGAGE CHEMISTRY|Exercise Archives (Subjective)|14 Videos
CENGAGE CHEMISTRY-ELECTROCHEMISTRY-Exercises Ingle Correct
  1. The electrode with reaction :Cr(2)O(7)^(2-)(aq)+14H^(o+)(aq)+6e^(-) ra...

    Text Solution

    |

  2. For a given reaction :M^((x+n))+n e^(-)rarr M^(c+),E^(c-).(red) is kn...

    Text Solution

    |

  3. Select the wrong statement.

    Text Solution

    |

  4. Select the correct statement.

    Text Solution

    |

  5. From the following information, calculate the solubility product of A...

    Text Solution

    |

  6. The strongest oxidizing agent among the following is

    Text Solution

    |

  7. The weakest oxidizing agent among the following is

    Text Solution

    |

  8. Suppose that gold is being plated onto another metal in a electrolytic...

    Text Solution

    |

  9. Chromium plating is applied by electrolysis to objects suspended in a ...

    Text Solution

    |

  10. 20 Ml of KOH solution was titrated with 0.20 M H(2)SO(4) solution in a...

    Text Solution

    |

  11. What is the cell entropy change ( in J K ^(-1)) of the following cell...

    Text Solution

    |

  12. k=4.95xx10^(-5) S cm^(-1) for a 0.001 M solution. The reciprocal of th...

    Text Solution

    |

  13. What is the value of pK(b)(CH(3)COO^(c-)) if wedge^(@).(m)=390 S cm^(-...

    Text Solution

    |

  14. In Hall's process , in the production of Al, carbon is used as the ano...

    Text Solution

    |

  15. DeltaG^(c-) or the reaction is , 4Al+3O(2)+6H(2)O+4overset(c-)(O)H r...

    Text Solution

    |

  16. Cu^(2+)+2e^(-) rarr Cu. For this, graph between E(red) versus ln[Cu^(2...

    Text Solution

    |

  17. A cell Cu|Cu^(2+)||Ag^(o+)|Ag inintially contains 2 M Ag^(o+) and 2 M ...

    Text Solution

    |

  18. The value of reaction quotient Q for the cell Zn(s)|Zn^(2+)(0.01M)||...

    Text Solution

    |

  19. In acid medium, MnO(4)^(c-) is an oxidizing agent. MnO(4)^(c-)+8H^(o...

    Text Solution

    |

  20. During the electrolysis of AgNO(3), the volume of O(2) formed at STP d...

    Text Solution

    |