Home
Class 12
CHEMISTRY
In the equation 4M+8CN^(-)+2H(2)O+O(2)...

In the equation
`4M+8CN^(-)+2H_(2)O+O_(2)rarr 4[M(CN_(2))]^(-)+4OH^(-)`
The metal M is

A

Copper

B

Iron

C

Gold

D

Zinc

Text Solution

Verified by Experts

The correct Answer is:
C

`4 Au+8 CN^(-)+2 H_(2)O+O_(2) rarr 4[Au(CN)_(2)]^(-)+4OH^(-)`.
Promotional Banner

Topper's Solved these Questions

  • SOME BASIC CONCEPTS OF CHEMISTRY

    ERRORLESS |Exercise Critical Thinking|13 Videos
  • SOME BASIC CONCEPTS OF CHEMISTRY

    ERRORLESS |Exercise JEE Section (Only one choice correct answer)|47 Videos
  • SOME BASIC CONCEPTS OF CHEMISTRY

    ERRORLESS |Exercise Ordinary Thinking (Objective Questions) Oxidation number and Oxidation state|83 Videos
  • SOLUTION

    ERRORLESS |Exercise JEE SECTION (JEE (Advanced)2018) (Numeric answer type questions)|3 Videos
  • THERMODYNAMICS AND THERMOCHEMISTRY

    ERRORLESS |Exercise JEE section (JEE (Advanced) 2018) Numeric answer type questions|2 Videos

Similar Questions

Explore conceptually related problems

In the equation: M+8CN^(-)+2H_(2)O+O_(2)to4[M(CN)_(2)]^(-)+4OH^(-) metal M is:

Name the metal M which is extracted on the basis of following reactions : 4M + 8CN^(-)+2H_(2)O+O_(2) rarr 4[M(CN)_(2)]^(-)+4OH^(-) 2[M(CN)_(2)]^(-)+Zn rarr [Zn(CN)_(4)]^(2-)+ 2M

How many cyanide ions are involved in the following chemical equation ? Au + CN^(Ө)+ H_(2)O +O_(2) rarr [Au(CN)_(2)]^(Ө) + overset(Ө) O H .

Following reactions take place during extraction of gold 4Au+8CN^(-)+ 2H_(2)O + O_(2) to 4[Au(CN)_(2)]^(-)+ 4OH^(-) 2[Au(CN)_(2)]^(-) + Zn to 2Au + [Zn(CN)_(4)]^(2-) Zinc in the extraction of gold acts as a/an

A metal M is extracted based on the following equation 4M+8CN^-+2H_2O+O_2 rarr 4[M[CN]_2]^-+4OH^- 2[M[CN]_2]^- +Zn rarr [Zn[CN]]^(2-) +2M identify M

ERRORLESS -SOME BASIC CONCEPTS OF CHEMISTRY-Ordinary Thinking (Objective Questions) Redox reaction and Method for balancing Redox reaction
  1. In the balanced chemical reaction IO(3)^(ө)+al^(ө)+bH^(ө)rarrcH(2)O+...

    Text Solution

    |

  2. Which of the following reaction involves oxidation reduction?

    Text Solution

    |

  3. In the equation 4M+8CN^(-)+2H(2)O+O(2)rarr 4[M(CN(2))]^(-)+4OH^(-) ...

    Text Solution

    |

  4. Which of the following is the strongest oxidising agent?

    Text Solution

    |

  5. MnO(4)^(-) ions are reduced in acidic conditions to Mn^(2+) ions where...

    Text Solution

    |

  6. Which of the following equations is a balanced one?

    Text Solution

    |

  7. Number of electron involved in the reduction of Cr(2)O(7)^(2-) ion in ...

    Text Solution

    |

  8. Number of moles of K(2)Cr(2)O(7) can be reduced by 1 mole of Sn^(2+) i...

    Text Solution

    |

  9. Which of the following reaction is a redox reaction?

    Text Solution

    |

  10. What is 'A' in the following reaction 2Fe((aq))^(3+)+Sn((aq))^(2+)rarr...

    Text Solution

    |

  11. Which of the following is not a redox reaction

    Text Solution

    |

  12. 2MnO(4)^(-)+5H(2)O(2)+6H^(+) rarr 2Z+5O(2)+8H(2)O. In this reaction Z ...

    Text Solution

    |

  13. When KMnO(4) acts as an oxidising agnet and ultimetely from MnO(4)^(2-...

    Text Solution

    |

  14. which of the following is a redox reaction

    Text Solution

    |

  15. Stannous sulphate (SnSO(4)) and potassium permanganate are used as oxi...

    Text Solution

    |

  16. C(2)H(6)(g)+nO(2) rarr CO(2)(g)+H(2)O(l) In this equation, the ratio...

    Text Solution

    |

  17. In the redox reaction, x KMnO(4) + NH(3) rarr y KNO(3) + MnO(2) + MnO(...

    Text Solution

    |

  18. The value of x in the partial redox equation MnO(4)^(-)+8H^(+)+xe hA...

    Text Solution

    |

  19. Starch iodide paper is used to test for the presence of

    Text Solution

    |

  20. For the redox reaction, MnO(4)^(-) + C(2)O(4)^(2-) + H^(+) rarr Mn^(...

    Text Solution

    |