Home
Class 12
CHEMISTRY
Considering Ellingham diagram, which of ...

Considering Ellingham diagram, which of the following metals can be used to reduce alumina?

A

`Fe`

B

`Zn`

C

`Mg`

D

`Cu`

Text Solution

Verified by Experts

The correct Answer is:
C
Metal whose oxide formation has more `- ve Delta G` value can reduce oxides of those metals whose formation has less `-ve Delta G`. Among the given metals only `(Mg rarr Mg O)` curve lies below `(Al rarr Al_(2) O_(3))` curve. Thus, `Mg` metal can be used to reduce. alumina.
Promotional Banner

Topper's Solved these Questions

  • GENERAL PRINCIPALS AND ISOLATION OF ELEMENTS

    R SHARMA|Exercise Arechives|16 Videos

  • POLYMERS

    R SHARMA|Exercise All Questions|65 Videos

Similar Questions

Explore conceptually related problems

Which of the following metal oxides can be reduced by CO?

Ellingham diagram is used for

Ellingham diagram can be drawn for the following:

On the basis of Ellingham diagram which of the following is/are correct?

R SHARMA-NEET PREVIOUS PAPER-Solved Question
  1. The correct difference between first-and second-order reactions is tha...

    Text Solution

    |

  2. Iron exhibits bcc structure at roomj temperature. Above 9000^(@)C, it ...

    Text Solution

    |

  3. Which of the following statements is not ture for halogens?

    Text Solution

    |

  4. Considering Ellingham diagram, which of the following metals can be us...

    Text Solution

    |

  5. Which ordering of compound is according to the decreasing order of the...

    Text Solution

    |

  6. On which of the following properties does the coagulating power of an ...

    Text Solution

    |

  7. When initial concentration of the reactant is doubled, the half-life p...

    Text Solution

    |

  8. Which of the following compounds can form a zwitterion?

    Text Solution

    |

  9. The type of isomersim shown by the complex [CoCl(2) (en)(2)] is

    Text Solution

    |

  10. Which of the following ions exhibits d-d transitions and paramagnetism...

    Text Solution

    |

  11. The geometry and magnetic behaviour of the complex [Ni(CO)4] are

    Text Solution

    |

  12. Iron carbonyl, Fe(CO)5 is

    Text Solution

    |

  13. A mixture of 2.3 g formic acid and 4.5 g oxalic acid is treated with c...

    Text Solution

    |

  14. Consider the change in oxidation state of Bromine corredponding to dif...

    Text Solution

    |

  15. The number of lone pairs of electrons present on the central atom of C...

    Text Solution

    |

  16. The compound A on treatment with Na gives B, and with PCl(5) gives C. ...

    Text Solution

    |

  17. The compound C(7)H(8) undergoes the following reactions C(7)H(8)over...

    Text Solution

    |

  18. For the redox reaction MnO(4)^(ө)+C(2)O(4)^(2-)+H^(o+)rarrMn^(2+)+CO...

    Text Solution

    |

  19. Identify the major product P, Q and R in the following sequence of rea...

    Text Solution

    |

  20. Which oxide of nitrogen is not a common pollutant introduced into the ...

    Text Solution

    |