As an electrolyte solution is diluted, the **conductivity (κ)** and **molar conductivity (Λ_m)** respectively:
ABoth decrease
BBoth increase
Cκ increases, Λ_m decreases
Dκ decreases, Λ_m increases
Answer & Solution
Correct answer: D. κ decreases, Λ_m increases
On dilution: fewer ions per unit volume → **κ decreases**. But the volume per mole increases more than κ falls → **Λ_m increases**. This is true for both strong and weak electrolytes.
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