Carbon reduction is possible for which of the \( \mathrm{P} \) following metal oxide. W (1) \( \...

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Carbon reduction is possible for which of the
\( \mathrm{P} \)
following metal oxide.
W
(1) \( \mathrm{Fe} \)
(2) \( \mathrm{Zn} \)
(3) \( \mathrm{Pb} \)
(4) \( \mathrm{Sn} \)
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