Q20 / 76 · NTA Abhyas (JEE Main) 2020 · Chemistry · General Principles and Processes of Isolation of Metals

How many of the following are the minerals of aluminium?
Magnesite, cryolite, kaolinite, malachite, epsum salt, bauxite, cuprite

Correct answer: 3

Solution

Cryolite Na3AlF6 , kaolinite Al2OH4Si2O5 and bauxite Al2O3.2H2O are the minerals of aluminium.

Hence, the correct answer is 3.

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