Home
Class 12
CHEMISTRY
Alumina is concentrated by dissolving in...

Alumina is concentrated by dissolving in concentrated solution of NaOH and then by passing `CO_2` through it. Name the process.

Text Solution

Verified by Experts

Leaching
Promotional Banner

Topper's Solved these Questions

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    ICSE|Exercise EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) (SHORT ANSWER QUESTIONS)|205 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    ICSE|Exercise EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) (LONG ANSWER QUESTIONS)|53 Videos

  • GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

    ICSE|Exercise EXERCISE (PART-I ( OBJECTIVE QUESTIONS )) (MATCH THE FOLLOWING)|6 Videos

  • ELECTROCHEMISTRY

    ICSE|Exercise ISC EXAMINATION QUESTIONS (PART-II Numerical Problems) |19 Videos

  • HALOALKANES AND HALOARENES

    ICSE|Exercise SOURCE|9 Videos

Similar Questions

Explore conceptually related problems

What are dilute solution and concentrated solution?

Which one of the following dissolves in hot concentrated NaOH?

Zinc dissolves in concentrated NaOH solution to produce dihydrogen as well as dioxygen gas.

The treatment of with concentrated NaOH gives

Statement-1: Hydrogen gas is liberated by the action of aluminium with a concentrated solution of NaOH Statement-2: Aluminium with NaOH forms sodium metaaluminate.

What type of solutions are formed on dissolving different concentrations of soap in water ?

CO_(2) concentrating steps are found in

Name : a yellow monoxide that dissolves in hot and concentrated caustic alkali.

(i) Name the most common ore of the metal aluminum from which the metal is extracted. Write the chemical formula of the ore. (ii) Name the process by which impure ore of aluminum gets purified by using concentrated solution of an alkali. (iii) Write the equation for the formation of aluminum at the cathode during the electrolysis of alumina.

When chlorine is passed through concentrated solution of KOH, the compound formed is ____________ .

ICSE-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) (VERY SHORT ANSWER QUESTIONS)
  1. When a basic flux is used ?

    Text Solution

    |

  2. What is leaching?

    Text Solution

    |

  3. Alumina is concentrated by dissolving in concentrated solution of NaOH...

    Text Solution

    |

  4. What is the role of collectors in froth floatation process? Name two...

    Text Solution

    |

  5. Why sulfide ores are usually concentrated by froth floatation process ...

    Text Solution

    |

  6. What is Ellingham diagram?

    Text Solution

    |

  7. In terms of Ellingham diagram state why Al2O3 cannot be reduced by chr...

    Text Solution

    |

  8. Which reducing agent is used to reduce the oxides of less electroposit...

    Text Solution

    |

  9. Which kind of ores undergo self reduction ?

    Text Solution

    |

  10. What are refractory materials?

    Text Solution

    |

  11. Why is MgO used for lining the inner surface of the furnace?

    Text Solution

    |

  12. Indicate the temperature at which carbon can be used as a reducing age...

    Text Solution

    |

  13. How would you purify a metal like Copper?

    Text Solution

    |

  14. Name the purification method which involves vapour phase extraction.

    Text Solution

    |

  15. Ultra pure silicon is needed by electronic industry. By which method o...

    Text Solution

    |

  16. Name the three main varieties of iron. Which out of them is the purest...

    Text Solution

    |

  17. What is the percentage of carbon in steel?

    Text Solution

    |

  18. A crude metal is heated with iodine to form metal tetraiodide which is...

    Text Solution

    |

  19. What is the principle of chromatographic separation ?

    Text Solution

    |

  20. Name the most important ore of aluminium.

    Text Solution

    |