The value of the reaction quotient, Q for the following cell is
`Zn(s)|Zn^(2+) (0.01 M)||Ag^(+) (1.25 M)|Ag(s)`

Options

A. 156
B. 125
C. `1.25xx10^(-2)`
D. `6.4xx10^(-3)`

Answer

D

Explanation

`{:(Zn(s) rarr Zn^(2+)+2e^(-)" (Anodic process)"),(2Ag^(+)+2e^(-) rarr 2Ag(s)" (Cathodic process)"),(ulbar(Zn(s)+2Ag^(+) hArr 2Ag(s) +Zn^(2+))):}`
`Q=([Zn^(2+)])/([Ag^(+)]^(2))= 0.01/((1.25)^(2))=6.4xx10^(-3)`