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General Principles and processes of Isolation of Elements
medium
The ore that contains both iron and copper is
A
copper pyrites
B
malachite
C
dolomite
D
azurite
(JEE MAIN-2019)
Solution
Copper pyrites is $CuFeS_2$
Malachite: $CuCO_3.Cu(OH)_2$
Azurite : $2Cu(CO)_3.Cu(OH)_2$
Dolomite: $CaCO_3.MgCO_3$
Standard 12
Chemistry