In a cell that untillizes the reaction ,
`Zn_((s)) + 2 H_((aq))^+ rarr Zn_((aq.))^(2+) + H_(2 (g) )`, adedition of ` H_2 SO_4` to cathode compartment will :

Options

A. Increase the E and shift equilibrium to the right
B. Lower the E and shift equilibrium to the left
C. Lower the E and shift equilibrium to the left
D. Increase the E and shift equilibrium to the right

Answer

A

Explanation

`Zn_((s))+2H_((aq))^(+)hArrZn_((aq))^(2+)+H_(2(g))`
`E_(Cell) = E_(Cell)^@ - (0.95)/2 log. ([Zn^(2+)])/([H^+]^2)`
When `H_2 SO_4` is added then `[H^+]` wil increase therefore ` E_(Cell)` will also increase and equilibrium will shift towards right .