Home
Class 12
CHEMISTRY
Reduction of metal sulphides directly wi...

Reduction of metal sulphides directly with carbon is not possible. Why?

Text Solution

Verified by Experts

In the reduction of metal sulphides with carbon, carbon disulphide (`CS_2`) is supposed to be formed. `CS_2` is thermodynamically less stable than metal sulphides. Thus reduction of metal sulphides directly with carbon is not possible.
Promotional Banner

Topper's Solved these Questions

  • PRINCIPLES OF METALLURGY

    AAKASH SERIES|Exercise SUBJECTIVE EXERCISE-2 ( SHORT ANSWER QUESTIONS )|8 Videos

  • PRINCIPLES OF METALLURGY

    AAKASH SERIES|Exercise SUBJECTIVE EXERCISE-2 ( VERY SHORT ANSWER QUESTIONS )|19 Videos

  • PRINCIPLES OF METALLURGY

    AAKASH SERIES|Exercise Objective exercise -4 (Assertion (A) & Reason (R) type questions :|39 Videos

  • PRACTICAL CHEMISTRY

    AAKASH SERIES|Exercise PRACTICE SHEET-5 (Integer answer Type questions)|6 Videos

  • PROTEINS AND NUCLEIC ACIDS

    AAKASH SERIES|Exercise PRACTICE SHEET - 4|30 Videos

Similar Questions

Explore conceptually related problems

Extraction of metals from sulphide cres is done by

Give an example for reduction of metal oxide with carbon.

The product in the reduction of PbO with carbon is

(A) Reduction of a metal oxide is easier if the metal formed is in liquid state at the temperature of reduction . (R) Delta G^(@) for the net reaction, reduction of metal oxide with the reductant, is more-ve when the metal formed is in molten state

H_2S does not produce metallic sulphide with

(A) The reduction of metal oxide is easier if the metal is in liquid state at temp of reduction (R) Delta S is -ve and Delta G is + ve

Why is the reduction of a metal oxide if the metal formed is in liquid state at the temperature of reduction?

Write the names and composition of some sulphide and carbonate minerals.

Why is carbon monoxide poisonous ?

The heating process for the extraction of elements are quite old but highly acceptable method for the extraction of elements. Become in this process the elements produced is in the highly pure state. Mostly As, Sb,Ni, Zr,B etc are prepared by this principle 4 mumber of metal sulphides which may be reated first in air to partially convert them to the aride, and then further roasted in the absence of air, wing self reduction. For which of the given sulphides auto reduction is applicable

AAKASH SERIES-PRINCIPLES OF METALLURGY-PROBLEMS
  1. Graphite rods are frequently replaced in HallHeroult's process of extr...

    Text Solution

    |

  2. In moist air copper corrodes to produce a green layer on the surface....

    Text Solution

    |

  3. Metal sulphides occur mainly in rocks, but metal halides occur in lake...

    Text Solution

    |

  4. Why is the reduction of a metal oxide if the metal formed is in liquid...

    Text Solution

    |

  5. The value of DeltafG^(Theta) for formation of Cr2 O3 is – 540 kJ "mo...

    Text Solution

    |

  6. Reduction of metal sulphides directly with carbon is not possible. Why...

    Text Solution

    |

  7. Eventhough reduction of magnesia with aluminium is thermodynamically f...

    Text Solution

    |

  8. Aluminium containing alumina as impurity can be refined by poling or n...

    Text Solution

    |

  9. The choice of a reducing agent in the extraction of a particular case...

    Text Solution

    |

  10. Hydrogen is a common reductant of organic chemicals, but it is not ...

    Text Solution

    |

  11. Although thermodynamically feasible, in practice alumina is not reduce...

    Text Solution

    |

  12. Reduction of metal oxides by thermit process becomes faster just af...

    Text Solution

    |

  13. Out of coke and carbonmonoxide, which is a better reducing agent for i...

    Text Solution

    |

  14. Both coke and lime stone are used in smelting of iron ore. Why?

    Text Solution

    |

  15. To precipitate silver from sodium argento-cyanide, aluminium can be us...

    Text Solution

    |

  16. For precipitation of silver from the complex [Ag(CN)(2) ]^(-) , zinc ...

    Text Solution

    |

  17. At a site, low grade copper ores are avilable and Zinc and iron scrap...

    Text Solution

    |

  18. Electrolysis of aqueous alkali metal chloride does not liberate metal...

    Text Solution

    |

  19. How is a mixture of oxides of Aland Fe separated ?

    Text Solution

    |

  20. Graphite rods are frequently replaced in Hall-Heroult's process of ex...

    Text Solution

    |