Home
Class 12
CHEMISTRY
At a site, low grade copper ores are ava...

At a site, low grade copper ores are available and zinc and iron scraps are also available. Which of the two scraps would be more suitable for reducing the leached copper ore and why?

Text Solution

Verified by Experts

Zinc being above iron in the electrochemical series (more reactive metal is zinc), the reduction will be faster in case zinc scraps are used. But zinc is costlier metal than iron so using iron scraps will be advisable and advantageous.
Promotional Banner

Topper's Solved these Questions

  • GENERAL PRINCIPLES AND PROCESSESS OF ISOLATION OF ELEMENTS

    NCERT|Exercise Exercise|31 Videos

  • ELECTROCHEMISTRY

    NCERT|Exercise Exercise|33 Videos

  • HALOALKANES AND HALOARENES

    NCERT|Exercise EXERCISE|31 Videos

Similar Questions

Explore conceptually related problems

(a) Suggest a condition under which magnesium could reduce alumina. (b) Although thermodynamically feasible, in practice magnesium metal is not used for the reduction of alumina in the metallurgy of aluminium. Why ? ( c) What is the reduction of a metal oxide easier if the metal formed is in liquid state at the temperature of reduction ? (d) At a site, low grade copper ores oare available and zinc and iron scraps are also available. Which of the two scraps would be more suitable for reducing the leached copper ore and why ?

For low grade copper ore we use:

Which reducing agent is employed to get copper from the leached low-grade copper ore ?

Which ore contains both iron and copper ?

NCERT-GENERAL PRINCIPLES AND PROCESSESS OF ISOLATION OF ELEMENTS -Exercise
  1. At a site, low grade copper ores are available and zinc and iron scrap...

    Text Solution

    |

  2. Which of the ores mentioned in Table 6.1 can be concentrated by magnet...

    Text Solution

    |

  3. What is the significance of leaching in the extraction of aluminium?

    Text Solution

    |

  4. The reaction Cr2O3+2AltoAl2O3+2Cr (triangleG^(ɵ)=-421kJ)) Is therm...

    Text Solution

    |

  5. It is true that under certain condition, Mg can reduce Al2O3 and Al ca...

    Text Solution

    |

  6. Copper can be extracted by hydrometallurgy but not zinc because

    Text Solution

    |

  7. What is the role of depressant in froth floatation process?

    Text Solution

    |

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

    Text Solution

    |

  9. Explain: (i). Zone refining (ii). Column chromatography.

    Text Solution

    |

  10. Out of C and CO, which is a better reducing agent at 673K?

    Text Solution

    |

  11. Name the common elements present in the anode mud in electrolytic refi...

    Text Solution

    |

  12. Write down the reactions taking place in different zones in the blast ...

    Text Solution

    |

  13. Write down the chemical reactions taking place in the extraction of zi...

    Text Solution

    |

  14. State the role of silica in the metallurgy of copper.

    Text Solution

    |

  15. Which method of refining may be more suitable if element is obtained i...

    Text Solution

    |

  16. Which method of refining will you suggest for an element in which impu...

    Text Solution

    |

  17. Describe a method for refining nickel.

    Text Solution

    |

  18. How can you separate alumina from silica in a bauxite ore associated w...

    Text Solution

    |

  19. Giving examples differentiate between roasting and calcination.

    Text Solution

    |

  20. How is ‘cast iron’ different from ‘pig iron”?

    Text Solution

    |

  21. Differentiate between “minerals” and “ores”.

    Text Solution

    |