Home
Class 11
CHEMISTRY
Aluminium is extracted form alumina (Al(...

Aluminium is extracted form alumina `(Al_(2)O_(3))` by electrolysis of a molten mixture of 

A

`Al_(2)O_(3)+Na_(3)AlF_(6)+CaF_(2)`

B

`Al_(2)O_(3)+KF+Na_(3)AlF_(6)`

C

`Al_(2)O_(3)+HF+NaAlF_(4)`

D

`Al_(2)O_(3)+CaF_(2)+NaAlF_(4)`

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • ELEMENTS OF BORON FAMILY

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE - 2|70 Videos

  • ELECTRONIC EFFECTS AND REACTION INTERMEDIATES

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL - II (PRACTICE SHEET ADVANCE)) (Integer Type Questions)|3 Videos

  • ELEMENTS OF CARBON FAMILY

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE - 3 (Recent AIPMT/NEET Questions) |10 Videos

Similar Questions

Explore conceptually related problems

In Al_(2)Cl_(6) , the covalency of aluminium is

In Al_(2)Cl_(6) , the covalency of aluminium is

Which of following metal is extracted by the electrolysis of its salt in molten state (a) Na, (b) Mg, (c) Al, (d) Fe, (e) Ag The correct answer is

Extraction of aluminium from aluminium oxide (Al_(2)//O_(3)) is het done by

Thermite is a mixture of Fe_(2)O_(3) and

Why pure alumina cannot be electrolysed for the extraction of aluminium metal?

Extraction of Aluminiunt can be understood by : Electrolytic reduction of Al_(2)O_(3) : {:("Electrolyte",:(Al_(2)O_(3)+"Cryolite")),("Cathode",:"Graphite inside the Fe container"),("Anode",:"Graphite rods"):} The molten electrolytes contains Na^(+),Ca^(2+), Ca^(2+) but only Al get deposited at cathode because :