Find oxidation state of \( \mathrm{Cu} \) and \( \mathrm{Fe} \) in \( \mathrm{CuFeS}_{2} \) \( \...

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Find oxidation state of \( \mathrm{Cu} \) and \( \mathrm{Fe} \) in \( \mathrm{CuFeS}_{2} \)
\( \mathrm{P} \)
respectively.
W
(1) \( +1,+3 \)
(2) \( +2,+1 \)
(3) \( +1,+2 \)
(4) \( +2,+3 \)
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