Which of the following are correct about the reaction, FeS_(2) + O_(2)

1.	Which of the following are correct about the reaction, FeS_(2) + O_(2)rarrFe_(2)O_3 + SO_(2)
Answer» E.q. wt. of `FeS_2`is M/11 Eq. wt. of `SO_2`is M/5.5 S has -2 OXIDATION state in `FeS_2` 1 mole of `FeS_2` requires 7/4 mole of `O_2` Solution :`2FE^(2+) rarr (Fe^(3+))_2 +2e` , Eq.wt. of `FeS_(2) = (M)/(22//2) = M/11` `2FeS_(2)+11/2O_(2) rarr 4SO_2 +Fe_(2)O_3` In this reaction 22 eletrons INVOLVED for 4 moles of `SO_2` . Eq.wt of `SO_(2)=(M)/(22//4) =M/(5.5) ` `O_(2)^(0) +4erarr2(O^(2-))` has -1 oxidation state .

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