Home
Class 12
CHEMISTRY
Which of the following reduction reactio...

Which of the following reduction reactions are actually employed in commercial extraction of metals ?

A

`Fe_(2)O_(3) + 2Al rarr Al_(2)O_(3)+Fe`

B

`Cr_(2)O_(3)+ 2Al rarr Al_(2)O_(3)+2Cr`

C

`2Na[Au(CN)_(2)]rarr Zn rarr Na[Zn(CN)_(4)]+2Au`

D

`Cu_(2)S + 2CuO rarr 6Cu + SO_(2)`

Text Solution

Verified by Experts

The correct Answer is:
B, C, D
Promotional Banner

Topper's Solved these Questions

  • METTALURGY

    NARAYNA|Exercise Assertion and Reasoning Questions|2 Videos

  • METTALURGY

    NARAYNA|Exercise True of False|2 Videos

  • METTALURGY

    NARAYNA|Exercise Single Answer Questions|120 Videos

  • METALLURGY

    NARAYNA|Exercise STATEMENT TYPE QUESTOINS|20 Videos

  • NUCLEAR CHEMISTRY

    NARAYNA|Exercise INTEGER|28 Videos

Similar Questions

Explore conceptually related problems

Which of the following reduction are actually employed in commercial extraction of metals?

Carbon reduction method is commercially employed for commercial extraction of

The following are some of the methods commonly employed for the extraction of metals from their ores. Which of the following methods is generally employed for the extraction of sodium ?

Which of the following metals are extracted by electrolytic reduction?

Which of the following ore is not reduced by carbon reduction in the metal extraction process?

NARAYNA-METTALURGY-MULTIPLE ANSWER QUESTOINS
  1. Which of the following are correctly matched?

    Text Solution

    |

  2. Which of the following statements are correct ?

    Text Solution

    |

  3. Which of the following statement is/are correct?

    Text Solution

    |

  4. Find out the incorrect statement among the following.

    Text Solution

    |

  5. Which of the following are the advantages of using oxygen in place of ...

    Text Solution

    |

  6. In the extraction of chlorine from brine

    Text Solution

    |

  7. Which of the following is/are correctly matched?

    Text Solution

    |

  8. In which of the following pair(s) the minerals are converted in to met...

    Text Solution

    |

  9. The reaction (s) which does (do) not occur in the reduction zone in th...

    Text Solution

    |

  10. Cassiterite ore (SnO(2)) is purified by

    Text Solution

    |

  11. Which of the following statements(s) is (are) true?

    Text Solution

    |

  12. Why lime stone is added in the extraction of lead from galena?

    Text Solution

    |

  13. The major role of flourspar, CaF(2) which is added in small amount in ...

    Text Solution

    |

  14. Which of the following statement(s) is /are correct?

    Text Solution

    |

  15. Which of the following statement(s) is/are correct about slag?

    Text Solution

    |

  16. Which of the following common element(s) is/are present in the anode m...

    Text Solution

    |

  17. Bessemerisation is carried out for

    Text Solution

    |

  18. Select the correct statement.

    Text Solution

    |

  19. The reaction (s) which does (do) not occur in the reduction zone in th...

    Text Solution

    |

  20. Which of the following reduction reactions are actually employed in co...

    Text Solution

    |