InterviewSolution
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InterviewSolution
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Complete and balance the following in acidic medium: `Ag^(o+)+AsH_(3)rarrH_(3)AsO_(3)` |
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Answer» `Aoverset(+1)(g^(o+))+Aoverset(-3)sH_(3)rarrH_(3)Aoverset(+3)sO_(3)` a. `As^(3-)rarrAs^(3+)`(oxidation) b. `Ag^(o+)rarrAg^(x) x=?` Clearly. (b) must be a reduction, so `x` must be `0`, as `x` cannot be negative for `Ag` (silver being metal). a. `As^(3-)rarrAs^(3+)+6e^(-)` b. `Ag^(o+)+1e^(-)Ag^(0)` `As^(3-)+6Ag^(o+)rarrAs^(3-)+6Ag^(0)` `AsH_(3)+6Ag^(o+)rarr6Ag^(0)+H_(3)AsO_(3)` Now balance charge by adding `6H^(o+)` on right side and finally add `3H_(2)O` on left side. `AsH_(3)+6Ag^(o+)+3H_(2)OrarrAg+H_(3)AsO_(3)+6H^(o+)` |
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