Question:
Identify the correct name of law.
"At infinite dilution each ion migrates independent of co-ion and contributes to total molar conductivity of an elctrolyte irrespective of the nature of other ion to which it is associated."
Identify the correct name of law.
"At infinite dilution each ion migrates independent of co-ion and contributes to total molar conductivity of an elctrolyte irrespective of the nature of other ion to which it is associated."
"At infinite dilution each ion migrates independent of co-ion and contributes to total molar conductivity of an elctrolyte irrespective of the nature of other ion to which it is associated."
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At infinite dilution each ion contributes independently to molar conductivity, which is the Kohlrausch law.
Updated On: Oct 1, 2026
- Henry's law
- Raoult's law
- Nernst derivative law
- Kohlrausch's law of independent migration of ions
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The Correct Option is D
Solution and Explanation
Step 1: Understanding the Concept:
At infinite dilution, ions are far apart and do not affect each other. So each ion adds a fixed amount to the molar conductivity of the electrolyte.
Step 2: Detailed Explanation:
This statement is Kohlrausch law of independent migration of ions. In symbols \(\Lambda^0_m = \lambda^0_+ + \lambda^0_-\).
Step 3: Why the other options are wrong.
Henry law relates gas solubility to pressure. Raoult law relates vapour pressure of a solution to mole fraction. There is no accepted "Nernst derivative law" for this statement.
Final Answer:
The law is Kohlrausch law, option (D). \[ \boxed{\text{Kohlrausch law}} \]
At infinite dilution, ions are far apart and do not affect each other. So each ion adds a fixed amount to the molar conductivity of the electrolyte.
Step 2: Detailed Explanation:
This statement is Kohlrausch law of independent migration of ions. In symbols \(\Lambda^0_m = \lambda^0_+ + \lambda^0_-\).
Step 3: Why the other options are wrong.
Henry law relates gas solubility to pressure. Raoult law relates vapour pressure of a solution to mole fraction. There is no accepted "Nernst derivative law" for this statement.
Final Answer:
The law is Kohlrausch law, option (D). \[ \boxed{\text{Kohlrausch law}} \]
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