1.

For the calomel half-cell, `Hg, Hg_(2)Cl_(2)|Cl^(-)(aq)` values of electrode potentials are plotted at different log `[Cl^(-)]`. Variation is represented byA. B. C. D.

Answer» Correct Answer - D
Half-cell reaction is :
`2Hg(l)+2Cl^(-)(aq)rarr Hg_(2)Cl_(2)(s)+2e^(-)`
`therefore K (1)/([Cl^(-)]^(2))`
`E=E^(@)-(0.0591)/(2)"log"(1)/([Cl^(-)]^(2))`
`E=E^(@)+0.0591 log [Al^(-)]`
Thus, E increase as `[Cl^(-)]` increases.


Discussion

No Comment Found

Related InterviewSolutions