Home
Class 12
CHEMISTRY
Carbon cannot be used in the reduction o...

Carbon cannot be used in the reduction of `A1_(2)O_(3)` because:

A

ZnO

B

`SnO_(2)`

C

`Fe_(2)O_(3)`

D

`Al_(2)O_(3)`

Text Solution

Verified by Experts

The correct Answer is:
D
Promotional Banner

Topper's Solved these Questions

  • METTALURGY

    NARAYNA|Exercise Extraction|48 Videos

  • METTALURGY

    NARAYNA|Exercise Statement Typer Question|2 Videos

  • METTALURGY

    NARAYNA|Exercise Level I|38 Videos

  • METALLURGY

    NARAYNA|Exercise STATEMENT TYPE QUESTOINS|20 Videos

  • NUCLEAR CHEMISTRY

    NARAYNA|Exercise INTEGER|28 Videos

Knowledge Check

  • Carbon cannot be used in the reduction of Al_(2)O_(3) because

    A
    it is an expensive proposition
    B
    the enthalpy of formation of `CO_(2)` is more than that of `Al_(2)O_(3)`
    C
    pure carbon is not easily available
    D
    the enthalpy of formation of `Al_(2)O_(3)` is too high

  • Carbon cannot be used in the reduction of Al_(2)O_(3) because

    A
    the enthalpy of formation of `CO_(2)` is more than that of `Al_(2)O_(3)`
    B
    pure carbon is not easily available
    C
    the enthalpy of formation of `Al_(2)O_(3)` is very high
    D
    it is an expensive proposition

  • Carbon cannot be used to reduce

    A
    ZnO
    B
    `SnO_(2)`
    C
    `Fe_(2)O_(3)`
    D
    `Al_(2)O_(3)`
    • NARAYNA-METTALURGY-Extraction of metals
    1. Carbon cannot be used in the reduction of A1(2)O(3) because:

      Text Solution

      |

    2. Hydro metallurgy is used in the extraction of

      Text Solution

      |

    3. Silver is displaced when zinc is added to aqueous sodium argento cyani...

      Text Solution

      |

    4. Aluminium is obtained by the electrolysis of pure of Al(2)O(3) dissolv...

      Text Solution

      |

    5. In the metallurgy of Fe, when CaCo(3) is added to blast furnace, calci...

      Text Solution

      |

    6. Electrochemical process (electrolysis of fused salt) is empolyed to ex...

      Text Solution

      |

    7. A mixture of haematite, coke and limestone on heating in blast furnace...

      Text Solution

      |

    8. In the extraction of iron from haematitie, the charge used is haematit...

      Text Solution

      |

    9. The slag formed in the blast furnace during the extraction of iron fro...

      Text Solution

      |

    10. The iron formed in blast furnace is calle d

      Text Solution

      |

    11. The most impure form of iron is

      Text Solution

      |

    12. The copper metal is extracted from its

      Text Solution

      |

    13. In the extraction of copper, the slag formed in the blast furnace is

      Text Solution

      |

    14. In the extraction of Cu from its sulphide ore, the metal is formed by ...

      Text Solution

      |

    15. Blister Cu is about

      Text Solution

      |

    16. The impurity present in Blister copper is

      Text Solution

      |

    17. Belgian process is used for the extraction of

      Text Solution

      |

    18. Which of the following method is not used for the concentration of bau...

      Text Solution

      |

    19. Name the method used for the purification of red bauxite where the fo...

      Text Solution

      |

    20. When Bauxite is heated with NaOH solution, the water soluble compound ...

      Text Solution

      |