Question

Read the following statement and predict the corresponding law.

'At infinite dilution when dissociation is complete, each ion makes a definite contribution towards total equivalent conductance of the electrolyte irrespective of the nature of the ion'.

• A. Ostwald's-dilution law
• B. Kohlrausch law
• C. Nernst law
• D. Ohm's law

Answer 1

The correct option is B Kohlrausch law

Ostwald’s dilution law: It gives the relation between the dissociation constant (Kd) and the degree of dissociation (∝) of a weak electrolyte.
Kohlrousch’s law: At infinite dilution when dissociation is complete, each on makes a definite contribution towards total equivalent conductance of the electrolyte irrespective of the nature of the ion.
Nernst equation: In electrochemistry, the Nernst equation is an equation that relates the reduction potential of a half-cell (or the total voltage, i.e the emf of the full cell) at any point in time to the standard electrode potential, temperature, activity and reaction quotient of the underlying reaction and species used.
Ohm’s law: It states that the current through a conductor between two points is directly proportional to the voltage across the two points.