Home
Class 12
CHEMISTRY
Copper sulphate dissolves in excess of K...

Copper sulphate dissolves in excess of KCN to give :

A

CuCN

B

`[Cu(CN)_(4)]^(3-)`

C

`[Cu(CN)_(4)]^(2-)`

D

`Cu(CN)_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B
Copper sulphate when react with KCN first give precipitate of cupric cyanide which reduce into `Cu_(2)CN_(2)` and dissolve in excess of KCN to give soluble `K_(3)[Cu(CN)_(4)]` complex salt
Promotional Banner

Topper's Solved these Questions

  • THERMODYNAMICS

    NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)|Exercise QUESTIONS|68 Videos

Similar Questions

Explore conceptually related problems

Copper sulphate dissolved in excess of KCN to give:-

Lead sulphate dissolves in

Copper sulphate solution reacts with KCN to give (a) Cu(CN)_(2) (b) CuCN (c ) K_(2)[Cu(CN)_(4)] (d) K_(3)[Cu(CN)_(4)] .

Ag CI dissolves in excess of KCN solution to give the ____complex compound .

Copper sulphate dissolves in ammonia due to the formulation of

Copper sulphate dissolves in Nh_(4)OH solution but FesO_(4) does not.

When to a copper sulphate solution , excess of ammonium hydroxide added then

In terms of electronic concept, show that the chemical reaction taking place between zinc and copper sulphate dissolved in water is a redox reaction.

NEET PREVIOUS YEAR (YEARWISE + CHAPTERWISE)-TRANSITION ELEMENTS D- AND F- BLOCK ELEMENTS-MCQ TYPES
  1. Identify the incorrect statement among the following:

    Text Solution

    |

  2. In which of the following paris both the ions are coloured in aqueous ...

    Text Solution

    |

  3. Copper sulphate dissolves in excess of KCN to give :

    Text Solution

    |

  4. More number of oxidation states are exhibited by the actinoids than by...

    Text Solution

    |

  5. The aqueous solution containing which one of the following ions will b...

    Text Solution

    |

  6. Four successive members of the first row transition elements are liste...

    Text Solution

    |

  7. Among the following series of transition metal ions, the one where all...

    Text Solution

    |

  8. Lanthanides are

    Text Solution

    |

  9. Which one of the following characteristics of the transition metals is...

    Text Solution

    |

  10. The correct order of ionic radii Y^(3+) , La^(3+) , Eu^(3+) and Lu^(3+...

    Text Solution

    |

  11. The basic character of the transition metal monoxide follows the order

    Text Solution

    |

  12. CuSO(4) when reacts with KCN forms CuCN which is insoluble in water. I...

    Text Solution

    |

  13. In the silver plating of copper, K[Ag(CN)(2)] is used instead of AgNO(...

    Text Solution

    |

  14. General electronic configuration of lanthanides is

    Text Solution

    |

  15. In the following transition metals, the maximum number of oxidation st...

    Text Solution

    |

  16. Which of the following statements is not correct?

    Text Solution

    |

  17. Which one of the following forms a colourless solution in aqueous medi...

    Text Solution

    |

  18. In which of the following compounds transition metal has zero oxidatio...

    Text Solution

    |

  19. Bell metal is an alloy of

    Text Solution

    |

  20. Oxidation state of in Fe(3)O(4) is

    Text Solution

    |