Which one of the following does not occur as sulphide ore? (Kerala CEE 2011) \( P \) (a) \( \mat...

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Which one of the following does not occur as sulphide ore?
(Kerala CEE 2011)
\( P \)
(a) \( \mathrm{Zn} \)
(b) \( \mathrm{Cr} \)
(c) \( \mathrm{Ag} \)
(d) \( \mathrm{Fe} \)
(e) \( \mathrm{Hg} \)
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