1.

Which of the following minerals contain aluminium ?

Answer»

Fluorspar
FELDSPAR
Mica
Carborundum

SOLUTION :Fluorspar : `CaF_2`
Feldspar : `KAlSiO_(3)O_8`
Mica : `K_(2) O.3 Al_(2) O_(3) . 6SiO_(2) . 2H_(2) O`
Carborundum : Sic


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