Chemistry - Redox Reactions Question with Solution | TestHub

9 moles of ${\mathrm{SO}}_2$ reacts completely with acidified potassium dichromate solution. In this reaction the number of moles of potassium dichromate reacted is $x$ and the number of moles of ${\mathrm{H}}_2\mathrm{O}$ produced is $y$. The value of $(x+y)$ is $\_\_\_\_$ .