Home
Class 12
CHEMISTRY
What is the purpose of adding a small am...

What is the purpose of adding a small amount of `CaF_2` to alumina during the extraction of aluminium.

Text Solution

Verified by Experts

To increase the conductivity and mobility of the fused mixture.
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 is the significance of leaching in the extraction of aluminium?

Answer the following question related with the isolation of aluminium from bauxite: Write the equation for the reaction that occurs at the cathode during the extraction of aluminium by electrolysis.

The following is an extract from 'Metals in the Service of Man, Alexander and Street/Pelican 1976. 'Alumina (aluminium oxide) has a very high melting point of over 2000^@ C so that it cannot readily be liquefied. However, conversion of alumina to aluminium and oxygen, by electrolysis, can occur when it is dissolved in some other substance : Write the equation for the reaction that occurs at the cathode during the extraction of aluminium by electrolysis.

What is the purpose of adding bleaching powder to water supplied to the town?

In the stages involved in the extraction of metals in general - give reasons for following Magnetic separation is not used during the dressing of bauxite ore in the extraction of aluminium.

In the extraction of aluminium : - Write equation for the reaction at cathode during the ectraction of aluminium by electrolysis.

What role is played by CO_(2) in getting pure alumina (Al_(2)O_(3)) in the extraction of aluminium ?

If a small amount of antimony is added to germanium crystal

If a small amount of antimony is added to germanium crystal

Name the following A compound which is added to lower the fusion temperature of the electrolytic bath in the extraction of aluminium .