What will be the equivalent conductance of `MgSO_(4)` at infinite dilutioin. Ifmolar conductances of `MgCl_(2),H_(2)SO_(4)` and `HCl` at infinite dilution are x,y and z respectively?

Options

A. `(x+y-2z)`
B. `(x+y-z)`
C. `2xx(x+y-z)`
D. `(x+y-2z)//2`

Answer

D

Explanation

`Lambda_(m(MgSO_(4)))^(@)=Lambda_(m(MgCl_(2)))^(@)+Lambda_(m(H_(2)SO_(4)))^(@)`
`-2Lambda_(m(HCl)))^(@)`
`:.Lambda_(eg(MgSO_(4)))=(x+y-2z)//2`