Home
Class 12
CHEMISTRY
Which of the following statement is not ...

Which of the following statement is not true?

A

The Ellingham diagram show the plots of `DeltaG` vs T.

B

In froth floatation process depressants are added to enhance the formation of froth.

C

Extraction of zinc oxide is done by coke.

D

CO is more effective reducing agent below 983K

Text Solution

Verified by Experts

The correct Answer is:
B
In froth floatation process depressants are added to enhance the formation of froth.
Promotional Banner

Topper's Solved these Questions

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    MODERN PUBLICATION|Exercise COMPETION FILE (Objective Questions) (Multiple Choice Question from competitive examinations)|49 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    MODERN PUBLICATION|Exercise COMPETION FILE (Objective Questions) (Multiple Choice Question with more than one correct answers)|10 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    MODERN PUBLICATION|Exercise HOTS (Higher Order Thinking skills) (Advanced Level)|10 Videos

  • ELECTROCHEMISTRY

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|20 Videos

  • HALOALKANES AND HALOARENES

    MODERN PUBLICATION|Exercise UNIT PRACTICE TEST|11 Videos

Similar Questions

Explore conceptually related problems

Which of the following statements is not true?

MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-COMPETION FILE (Objective Questions) (Multiple Choice Question with only one correct answer)
  1. Copper pyrites are concentrated by

    Text Solution

    |

  2. Electrolyte reduction method is used in the extraction of

    Text Solution

    |

  3. The purpose of smelting an ore is

    Text Solution

    |

  4. Which of the following metals is obtained by leaching its ore with dil...

    Text Solution

    |

  5. Which of the following metals cannot be extracted by carbon reduction ...

    Text Solution

    |

  6. Van Arkel method of purification of metals involves converting the met...

    Text Solution

    |

  7. In which of the following, ore does not match with the metal ?

    Text Solution

    |

  8. Smelting involves reduction of metal oxide with :

    Text Solution

    |

  9. Out of the following matals that cannot be obtained by electrolysis of...

    Text Solution

    |

  10. Which of the following is used in thermine welding ?

    Text Solution

    |

  11. DeltaG^(Ө) vs T plot in Ellingham diagram slopes downward for the reac...

    Text Solution

    |

  12. Which of the following statement is not true?

    Text Solution

    |

  13. From the Ellingham graphs on carbon, which of the following statements...

    Text Solution

    |

  14. During roasting of zinc blende, it converts to

    Text Solution

    |

  15. The form of iron obtained from blast furnace is:

    Text Solution

    |

  16. In blast furnace, iron oxide is reduced by

    Text Solution

    |

  17. The smelting of iron in a blast furance involves all the steps except

    Text Solution

    |

  18. Heating pyrities in air to remove sulphur is called

    Text Solution

    |

  19. In the metallurgy of iron, when limestone is added to the blast furnac...

    Text Solution

    |

  20. In electrorefining, the impure metal is made .

    Text Solution

    |