Name one metal each occurring as : (a) A sulphide (b) A carbonate (c) An oxide

Name one metal each occurring as :

(a) A sulphide

(b) A carbonate

(c) An oxide

Ans. (a) Iron Sulphide (FeS)

(b) Calcium carbonate (CaCO3)

(c) Aluminium oxide (Al2O3)