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The ore that contains both iron and copper is: (1) malachite (2) dolomite (3) azurite (4) copper pyrites please ans it fast and also please tell the formulae of each??????please.........

The ore that contains both iron and copper is:
(1) malachite
(2) dolomite
(3) azurite
(4) copper pyrites
please ans it fast and also please tell the formulae of each??????please.........

Grade:11

3 Answers

Arun
25750 Points
4 years ago
Copper pyrites :    CuFeS2 Malachite :      Cu(OH)2. CuCO3 Azurite :        Cu(OH)2 .  2CuCO3   Dolomite :    CaCO3 . MgCO3
 
Hence option 4 is correct.
Mayank
368 Points
4 years ago
Copper pyrites : CuFeS2
Malachite : Cu(OH)2 . CuCO3
Azurite Cu(OH)2 . 2CuCO3
Dolomite CaCO3 . MgCO3
the correct ans is 4 option as you can clearly see that copper pyrites contain both iron , copper and in fact it also contains sulphur.........
Ambuj Surjan
29 Points
4 years ago
Copper pyrite-CuFeS2
Azurite-2CuCO3.Cu(OH)2
Malachite-CuCO3.Cu(OH)2
Dolomite- MgCO3.CaCO3
Well the answer for the above question is option 4 that is copper pyrite it is an ore containing iron copper and sulphur. 
 
 

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