Please help me

Dear Student,
(a) A metal which occurs as sulphide is lead (Pb)
ORE : lead sulphide (PbS)
(b) A metal which occurs as halide is silver (Ag)
ORE : Chlorargyrite (AgCl) [ commonly called as horn silver]
(c) A metal which occurs as carbonate is zinc (Zn)
ORE : Zinc carbonate (ZnCO₃)
(d) A metal which occurs as oxide is iron (Fe)
ORE : hematite (Fe₂O₃), magnetite (Fe₃O₄)
Regards