Home
Class 12
CHEMISTRY
Describe the role of NaCN in the extract...

Describe the role of NaCN in the extraction of gold from gold ore.

Promotional Banner

Topper's Solved these Questions

  • EXAM PAPER 2013

    ASSAM ACADEMIC CENTRE|Exercise Example |74 Videos

  • Haloalkanes and Haloarenes

    ASSAM ACADEMIC CENTRE|Exercise Example|56 Videos

Similar Questions

Explore conceptually related problems

Describe the role of SiO_2 in the extraction of Copper from Copper matte.

Describe the role of the following in the processes mentioned: NaCN in the extraction of silver forms silver ore.

What is the chief ore of iron? Write chemical reactions taking place is the extraction of iron from its ore?

Name the metals which are associated with the following terms in their extraction from their ores. Bessemer's converter.

Name the metals which are associated with the following terms in their extraction from their ores. Alumino thermic process

Describes briefly the role of herbarium sheetin the taxonomy studies.

Describe the role of the following in the processes mentioned: Limestone in the metallurgy of iron.

Describe the role of the following in the processes mentioned: Iodine in the refining of zirconium.

Which ore is employed for the extraction of cast iron?

Explain the role of the following in the processes mentioned: Silica in the extraction of copper.

ASSAM ACADEMIC CENTRE-General Principles of Processes of Isolation of Elements-Example
  1. Describe how the following change are brought about zinc oxide into me...

    Text Solution

    |

  2. Describe how Impure titanium is convereted into pure titanium.

    Text Solution

    |

  3. Describe the role of NaCN in the extraction of gold from gold ore.

    Text Solution

    |

  4. Describe the role of SiO2 in the extraction of Copper from Copper matt...

    Text Solution

    |

  5. Describe the role of the following in the processes mentioned: Iodine ...

    Text Solution

    |

  6. Outline the prinicples of refining of metals by the following methods....

    Text Solution

    |

  7. Write down the reaction taking place in different zones in the blast f...

    Text Solution

    |

  8. Write the chemical reactions which take place in the following operati...

    Text Solution

    |

  9. Write the chemical reactions which take place in the following operati...

    Text Solution

    |

  10. Write the chemical equation for Mond process.

    Text Solution

    |

  11. Describe the role of the following in the processes mentioned: NaCN in...

    Text Solution

    |

  12. What is the role of iodine in the refining of titanium?

    Text Solution

    |

  13. Explain the role of the following in the processes mentioned: Cryolite...

    Text Solution

    |

  14. Describe how the following change are brought about pig iron into stee...

    Text Solution

    |

  15. Describe how the following changes are brought about Impure copper int...

    Text Solution

    |

  16. The reaction, Cr2O3 + 2Al rarr Al2O3 + 2Cr (DeltaG^@ = -421KJ) is ther...

    Text Solution

    |

  17. Is it true that under certain conditions, Mg can reduce SiO2 and Si ca...

    Text Solution

    |

  18. Copper can be extracted by hydrometallurgy but not zinc. Explain.

    Text Solution

    |

  19. Explain the role of the following in the processes mentioned: Depressa...

    Text Solution

    |

  20. Why is the extraction of copper from pyrites more difficult than that ...

    Text Solution

    |