Chemistry - Electrochemistry Question with Solution | TestHub

Reduction potentials of four elements$\text{P,}\text{Q,}\text{R,}\text{S}$is$-\text{2}\text{.90}\text{V}$,$\text{0.34}\text{V}$,$\text{1}\text{.2}\text{V}$and$-\text{0}\text{.76}\text{V}$. The decreasing order of reducing power is