Home
Class 12
CHEMISTRY
Which of the following pairs is not corr...

Which of the following pairs is not correctly matched with respect to the extraction of metals from their ores ?

A

Leaching process -Silver and gold from their native ores .

B

Self reduction - Copper and mercury from their sulphide ores .

C

Carbon/carbonmonoxide reaction - Iron and zinc from their oxides ores .

D

Elecrolytic reduction-Aluminium and tin from their oxides ores .

Text Solution

Verified by Experts

The correct Answer is:
d
Promotional Banner

Topper's Solved these Questions

  • METTALURGY

    NARAYNA|Exercise Multiple answer|26 Videos

  • METTALURGY

    NARAYNA|Exercise Statement type questions|8 Videos

  • METTALURGY

    NARAYNA|Exercise SUBJECTIVE TYPE QUESTIONS|18 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 pairs are not correctly matched?

The extraction of metal from the ore is

NARAYNA-METTALURGY-Level -VI (single answer question )
  1. Which of the following pairs is not correctly matched with respect to ...

    Text Solution

    |

  2. Which of the following reactions does not occur in Bessemer converter ...

    Text Solution

    |

  3. The chemical process in the production of steel from haematite ore inv...

    Text Solution

    |

  4. NaCN is sometimes added in the froth flotation process as a depressant...

    Text Solution

    |

  5. Leaching of Ag(2)S is carried out by heating it with a dilute solution...

    Text Solution

    |

  6. A sulphide ore like ZnS is first roasted into its oxide prior to reduc...

    Text Solution

    |

  7. Choose the correct option the code regarding roasting process. (I) I...

    Text Solution

    |

  8. There are following extraction process of silver but not:

    Text Solution

    |

  9. In the leaching of Ag(2)S with NaCN, a stream air is also passed. It i...

    Text Solution

    |

  10. In the extraction of aluminium Process X: employed for red bauxite t...

    Text Solution

    |

  11. Carbon cannot be used in the reduction of A1(2)O(3) because:

    Text Solution

    |

  12. FeCr(2)O(4)( chromite ) is converted to Cr by following steps : Chro...

    Text Solution

    |

  13. During the electrolysis of carnallite, MgCl(2) is decomposed and not K...

    Text Solution

    |

  14. For extraction of sodium from NaC1, the electrolytic mixture Nac1+Na(3...

    Text Solution

    |

  15. During electrolytic reduction of alumina, two auxillary electrolytes X...

    Text Solution

    |

  16. During the extraction of iron in the blast furnace ,

    Text Solution

    |

  17. In which of the following the impure metal not purified by the oxidati...

    Text Solution

    |

  18. Which of the following pairs is not correctly matched with respect to ...

    Text Solution

    |

  19. Which of the following reaction does not occur in Bessemer’s converter...

    Text Solution

    |

  20. The chemical process in the production of steel from haematite ore inv...

    Text Solution

    |