Home
Class 12
CHEMISTRY
During electrolysis of fused calcium hyd...

During electrolysis of fused calcium hydride, the hydrogen is produced at

A

Cathode

B

Anode

C

Hydrogen is not liberated at all

D

`H_(2)` produced reacts with oxygen to form water.

Text Solution

Verified by Experts

The correct Answer is:
b
`CaH_(2)overset(El ectrolysis)rarrCa^(2+)+2H^(c-)`
At cathode `(` reduction `):Ca^(2+)+2e^(-) rarr Ca`
At anode `(` oxidation`):2H^(c-) rarr H_(2)+2e^(-)`
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

Similar Questions

Explore conceptually related problems

In barium hydride, hydrogen is-

A: Electrolysis of molten calcium hydride produces hydrogen gas at the cathode. R: Hydrogen in calcium hydride is present as H^(+) ion.

During the electrolysis of an electrplyte, the number of ions produced , is directly proportional to the .

During the electrolysis of fused NaCl, which reaction occurs at anode ?

CENGAGE CHEMISTRY-ELECTROCHEMISTRY-Exercises Ingle Correct
  1. Given E^(c-).(Fe^(2+)|Fe) and E^(c-).(Fe^(3+)|Fe^(2+)) are -0.44 and 0...

    Text Solution

    |

  2. The dissociation of a wask electrolyte obeys the law of mass action. I...

    Text Solution

    |

  3. During electrolysis of fused calcium hydride, the hydrogen is produced...

    Text Solution

    |

  4. The increase in the value of molar conducitivity of acetic acid with d...

    Text Solution

    |

  5. Which of the following is anodic reaction.

    Text Solution

    |

  6. The value of molar conductivity of HCl is greater than that of NaCl at...

    Text Solution

    |

  7. A galvanic cell is set up from a zinc bar weighing 100g and 1.0L of 1....

    Text Solution

    |

  8. The charge required for the reduction of 1 mol Cr(2)O(7)^(2-) ions to ...

    Text Solution

    |

  9. In order to completely oxidize 0.1 mol of MnO(4)^(2-) to permanganate ...

    Text Solution

    |

  10. Which of the following reactions occurs at the anode during the rechar...

    Text Solution

    |

  11. In H(2)-O(2) fuel cell, the reaction occurring at cathode is

    Text Solution

    |

  12. The thermodynamic efficiency of cell is given by

    Text Solution

    |

  13. 10800 C of electricity passed through the electrolyte deposited 2.977g...

    Text Solution

    |

  14. In which of the following will the corrosion of iron be most rapid?

    Text Solution

    |

  15. The two Pt electrodes fitted in a conductance cell are 1.5 cm apart wh...

    Text Solution

    |

  16. For a reaction A(s)+2B^(o+) rarr A^(2+)+2B K(c) has been found to be...

    Text Solution

    |

  17. Rust is a mixture of

    Text Solution

    |

  18. Galvanized iron sheets are coated with

    Text Solution

    |

  19. An example of a simple fuel cell is

    Text Solution

    |

  20. For an electrolyte solution of 0.05 mol L^(-1) , the conductivity has...

    Text Solution

    |