Home
Class 12
CHEMISTRY
Mg reduces Al(2)O(3) below ....

Mg reduces `Al_(2)O_(3)` below __________.

Text Solution

Verified by Experts

1623 K
Promotional Banner

Topper's Solved these Questions

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    CHHAYA PUBLICATION|Exercise EXERCISE (SHORT ANSWER-TYPE QUESTIONS)|41 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    CHHAYA PUBLICATION|Exercise ADDITIONAL QUESTION (Mention the role of -)|8 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    CHHAYA PUBLICATION|Exercise EXERCISE (VERY SHORT ANSWER-TYPE QUESTIONS)|33 Videos

  • EQUILIBRIUM

    CHHAYA PUBLICATION|Exercise PRACTICE TEST 7|14 Videos

  • HALOAKANES AND HALOARENES

    CHHAYA PUBLICATION|Exercise Practise set 10 (Answer the following questions)|10 Videos

Similar Questions

Explore conceptually related problems

In the Ellingham diagram, since the (Cr, Cr_(2),O_(3)) line lies ___________ the (Al, Al_(2)O_(3)) line, therefore, aluminium reduces Cr_(2)O_(3) .

The conjugates base of [Al(H_2O)_6]^(3+) is __________

In it true that under certain conditions, Mg can reduce Al_(2)O_(3) and Al can reduce MgO ? What are those conditions?

Aluminium reduces Cr_(2)O_(3) to Cr, but chromium cannot reduce Al_(2)O_(3) to Al- why?

Is it possible to extract aluminium by electrolytic reduction of Al_(2)O_(3) ? Explain with reasons.

How many faraday of electricity are required to produce 18 g of Al (atomic mass = 27) from molten Al_(2)O_(3) by electrolysis -

The highly electropositive metals like Na, Mg or Al are extracted by _____________.

What chemical principle is involved in choosing a reducing agent for getting the metal from its oxide ore? Consider the metle oxides Al_(2)O_(3) and Fe_(2)O_(3) , and justify the choice of the reducing agent.

The Delta_(g)G^(@) for the formation of Cr_(2)O_(3) is -"540 kJ.mol"^(-1) and that of Al_(2)O_(3) is -"827 kJ.mol"^(-1) . Is it possible to reduce Cr_(2)O_(3) with aluminium?

In aluminium extraction by the Bayer process, alumina is extracted from banxite by sodium hydroxide at height temperatures and pressures Al_(2)O_(3)(s) + 2OH^(-) (aq) rarr 2Al_(2)O_(2)^(-) (aq) + H_(2)O (l) Solid impurities such as Fe_(2)O_(3) and SiO_(2) are removed and then Al(OH)_(4)^(-) is reprecipitated: 2Al(OH)_(4)^(-) rarr Al_(2)O_(3).3H_(2)O(s) + 2OH^(-) (aq). In the industrial world.

CHHAYA PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE (Fill in the blanks )
  1. The ore of tin containing FeCrO(4) is concentrated by .

    Text Solution

    |

  2. Name the reducing agent that is used in the thermite process?

    Text Solution

    |

  3. is used as a flux to remove SiO(2) (gangue).

    Text Solution

    |

  4. The most pure iron is .

    Text Solution

    |

  5. The highly electropositive metals like Na, Mg or Al are extracted by .

    Text Solution

    |

  6. electrode is used as anode in the electrolysis of Al(2)O(3).

    Text Solution

    |

  7. Low melting metals like lead and tin are purified by .

    Text Solution

    |

  8. is used in purification of nickel by Mond process.

    Text Solution

    |

  9. The slag obtained from blast furnace mainly contains .

    Text Solution

    |

  10. Mg reduces Al(2)O(3) below .

    Text Solution

    |

  11. Metals of very high purity are produced by method.

    Text Solution

    |

  12. The metals used in space technology are purified by method.

    Text Solution

    |

  13. Froth-floatation is used for concenrating ores.

    Text Solution

    |

  14. solution is used for the extraction of silver and gold from their ores...

    Text Solution

    |

  15. In the extraction of iron, acts as a reducing agent in the upper regi...

    Text Solution

    |

  16. In the Ellingham diagram, since the (Cr, Cr(2),O(3)) line lies the (A...

    Text Solution

    |

  17. The alloy steel used for making permanent magnet is .

    Text Solution

    |

  18. Al(2)O(3) is used in chromatography.

    Text Solution

    |

  19. The reduction of a metal oxide is easier if the metal is formed in the...

    Text Solution

    |

  20. The protect various articles of iron from rusting, they are coated wit...

    Text Solution

    |