Home
Class 12
CHEMISTRY
Copper can be deposited from acidified c...

Copper can be deposited from acidified copper sulphate and alkaline cuprous cyanide. If the same current is passed for a definite time `:`

A

The amount of copper deposited from acidic copper sulphate will be higher.

B

The amount of copper deposited from alkaline cuprous cyanide will be higher

C

The same amount of copper will be deposited.

D

None of these

Text Solution

Verified by Experts

The correct Answer is:
b

Alkaline solution will keep `H^(o+)` low so that there is a very small concentration. Hence, chances of `H^(o+)` getting reduced to `H_(2)` along with `Cu` are lesser in alkaline cuprous cyanide as compared to acidified copper sulphate.
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

Copper can be reduced from acidic copper sulphate solution by

Copper can be displaced from aqueous solution of copper sulphate by adding

Which metal can deposit copper from copper sulphate solution ?

How much copper can be obtained from 100g of copper sulphate (CuSO_(4)) ?

Zinc can displace copper from copper sulphate solution bacause zine is

Pure copper sulphate can be obtained from an impure sample by the process of:

Iron displaces copper from copper sulphate solution because

CENGAGE CHEMISTRY-ELECTROCHEMISTRY-Exercises Ingle Correct
  1. On the basis of position in the electrolchemical series, the metal whi...

    Text Solution

    |

  2. A dilute aqueous solution of sodium fluoride is electrolyzed, the prod...

    Text Solution

    |

  3. Copper can be deposited from acidified copper sulphate and alkaline cu...

    Text Solution

    |

  4. Silver is removed electrolytically from 200mL of a 0.1N solution of Ag...

    Text Solution

    |

  5. Chromium plating can involve the electrolysis of an electrolyte of an ...

    Text Solution

    |

  6. Which of the following does not evolve oxygen at anode when the elect...

    Text Solution

    |

  7. Calculate the potential of the following cell : Pt|underset((2.0M)(...

    Text Solution

    |

  8. The electricity conductivity of a solution serves as a means of determ...

    Text Solution

    |

  9. A constant current was passed through a solution of AuCl(4)^(c-) ion b...

    Text Solution

    |

  10. E^(c-) for FeY^(c-)+e^(c-) rarr FeY^(2-)

    Text Solution

    |

  11. Calculate E^(c-) for the reactions : ZnY^(2-)hArrZn(s)+Y^(4-) where...

    Text Solution

    |

  12. The solubility product of Pb(3)(AsO(4))(2) is 4.1xx10^(-36). E^(c-) fo...

    Text Solution

    |

  13. A cell is to be constructed to show a redox change : Cr+2Cr^(3+)hArr...

    Text Solution

    |

  14. E^(c-) for Cr^(3+)+3e^(-) rarr Cr and Cr^(3+)+e^(-) rarr Cr^(2+) are -...

    Text Solution

    |

  15. The efficiency of a fuel cell si 80% and the standard heat of reaction...

    Text Solution

    |

  16. The E(cell) for a given cell is 1.2346 and 1.2340V at 300K and 310K, ...

    Text Solution

    |

  17. A curent of 3A was passed for 1 hour through an electrolyte solution o...

    Text Solution

    |

  18. The E^(c-) for Cu^(2+)//Cu^(o+),Cu^(o+)//Cu,Cu^(2+)//Cu, are 0.15V,0.5...

    Text Solution

    |

  19. Total charge required to convert three moles of Mn(2)O(4) to MnO(4)^(c...

    Text Solution

    |

  20. A current of 965A is passed for 1 s through 1L solution of 0.02N NiSO(...

    Text Solution

    |