which of the following metals will prefer to occur as oxides, sulphides or both types

which of the following metals will prefer to occur as oxides, sulphides or both types




which of the following metals will prefer to occur as oxides, sulphides or both types? give a reason to your answer.



(i)         fe2+  (ii) Al3+    (iii) Ni2+       (iv) Hg2+



(v)         Cr3+     (vi) Sn2+       (vii) Ca2+       (viii) Cu+





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