1.

Which of the following are correct about the reaction, `FeS_(2)+O_(2)rarrFe_(2)O_(3)+SO_(2)`A. Eq.wt.of `FeS_(2)` is `M//11`B. Eq.wt.of `SO_(2)` is `M//5`C. `S` has `-2` oxidation state in `FeS_(2)`D. `1` mole of `FeS_(2)` requires `7//4` mole of `O_(2)`

Answer» Correct Answer - A::B
`2Fe^(2+)rarr(Fe^(3+))+2e`,
Eq.wt of `FeS_(2)=(M)/(22//2)=(M)/(11)`
`2(S^(-))_(2)rarr4(S^(4+))+20e`
Eq.wt. of `SO_(2)=(M)/(20//4)=(M)/(5)`
`O_(2)^(0)+4erarr2(O^(2-))`
`4FeS_(2)+11O_(2)rarr2Fe_(2)O_(3)+16SO_2`
`S` has `-1` ox.state.


Discussion

No Comment Found

Related InterviewSolutions