1.

Kohlrausch law states that at

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infinite dilution, each ion MAKES definite contribution to conductance of an electrolyte whatever be the nature of the other ion of the electrolyte
infinite dilution, each ion makes definite contribution to equivalent conductance of an electrolyte, whatever be the nature of the other ion of the electrolyte
finite dilution, each ion makes definite contribution to equivalent conductance of an electrolyte, whatever be the nature of the other ion of the electrolyte
infinite dilution each ion makes definite contribution to equivalent conductance of an electrolyte depending on the nature of the other ion of the electrolyte.

Solution :At infinite dilution, when dissociation is complele eachion makes a definite contribution to WARDS molar conductance of the electrolye irrespective of the nature of the other ion with which its is associated and that the molar conductance of any electroylte at infinite dilution is given by the SUM of the contributions of two IONS. This is CALLED Kohlrausch law.
`Lambda_(m)^(oo) = Lambda_(+)^(oo) + Lambda_(-)^(oo)`
`Lambda_(1)^(oo) and Lambda_(-)^(oo)` are molar ionic conductance at infinite dilution,for cations and anions, respectively.


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