Q-1) carbon monoxide (CO) and several hydrocarbons have been studied as possible fuels for the use in fuel cells. The standard redox potential (Eo) with electrochemical reactions are given below. Which half-cell would ideally yield the highest cell voltage when coupled with the standard oxygen half cell in acid solution ? 1) CO(g) + H20(I) = CO2(g) + 2H + 2e-, 2) CH4(8) + 2H20(I) = CO2(g) + 8H + 8e-, 3) H2C204(1) = 2002(g) + 2H + 2e-, Eo = -0.11v (vs SHE) Eo = -0.24v (vs SHE) Eo = -0.43V (vs SHE) Additional information : oxygen reduction reaction:- 02(g) +4H + 4e- = 2H20, Eo = 1.23v SHE= standard hydrogen electrode