Advertisements
Advertisements
Question
Balance the following equation by the oxidation number method.
\[\ce{KMnO4 + Na2SO3 -> MnO2 + Na2SO4 + KOH}\]
Solution
\[\ce{2KMnO4 + 3Na2SO3 -> MnO2 + Na2SO4 + KOH}\]
\[\ce{2KMnO4 + 3Na2SO3 -> 2MnO2 + 3Na2SO4 + KOH}\]
\[\ce{2KMnO4 + 3Na2SO3 + H2O -> 2MnO2 + 3Na2SO4 + 2KOH}\]
APPEARS IN
RELATED QUESTIONS
Distinguish between oxidation and reduction.
Balance the following equation by the oxidation number method.
\[\ce{K2Cr2O7 + Kl + H2SO4 -> K2SO4 + Cr2(SO4)3 + I2 + H2O}\]
Balance the following equation by the oxidation number method.
\[\ce{Cu + HNO3 -> Cu(NO3)2 + NO2 + H2O}\]
Balance the following equation by the oxidation number method.
\[\ce{KMnO4 + H2C2O4 + H2SO4 -> K2SO4 + MnSO4 + CO2 + H2O}\]
Balance the following equation by the ion electron method.
\[\ce{KMnO4 + SnCl2 + HCl -> MnCl2 + SnCl4 + H2O + KCl}\]
Balance the following equation by the ion electron method.
\[\ce{C2O^2-_4 + Cr2O^2-_7 -> Cr^3+ + CO2}\] (in acid medium)
Reducing agent is a species that ____________.
In the redox reaction, \[\ce{2MnO^-_4 + SO^{2-}_3 + H2O -> 2MnO^{2-}_4 + SO^{2-}_4 + 2H^+}\], the reductant is:
In the cell represented by \[\ce{Pb(s) | Pb^{2+} (1 M) || Ag+ (1 M) | Ag(s)}\], the reducing agent is ______.
Which is the best oxidizing agent among the following?
