# The molar conductivities   at infinite dilution in water at are 91.0 and 426.2 S cm2/mol  respectively. To calculate  , the additional value required is Option 1) Option 2) Option 3) Option 4)

As we learnt in

Kohlrausch law of independent migration of ions -

The law states that limiting molar conductivity of an electrolyte can be represented at the sum of the individual contributions of the anion and cation of the electrolyte.

-

From the reaction,

Thus to calculate the value of one should know the value of  along with and

Option 1)

This option is incorrect.

Option 2)

This option is incorrect.

Option 3)

This option is incorrect.

Option 4)

This option is correct.

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