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The equivalent conductance of NaCl at concentration C and at infinite dilution are λ C and λ ∞ , respectively. The correct relationship between λ Χ and λ ∞ is given as: (where the constant B is positive)

1. λ C = λ ∞ – (B)C
2. λ C = λ ∞ – (B) C
3. λ C = λ ∞ + (B) C
4. λ C = λ ∞ + (B)C

Correct answer: λ C = λ ∞ – (B) C

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