Q22 / 120 · VITEEE 2006 · Chemistry

Equivalent conductance of an electrolyte containing $\mathrm{NaF}$ at infinite dilution is $90.1$ $\mathrm{Ohm}^{-1} \mathrm{~cm}^{2}$. If $\mathrm{NaF}$ is replaced by $\mathrm{KF}$ what is the value of equivalent conductance?

  • Correct answer
    A
    $90.1 \mathrm{Ohm}^{-1} \mathrm{~cm}^{2}$
  • B
    $111.2 \mathrm{Ohm}^{-1} \mathrm{~cm}^{2}$
  • C
    0
  • D
    $222.4 \mathrm{Ohm}^{-1} \mathrm{~cm}^{2}$

Solution

Because at infinite dilution the equivalent conductance of strong electrolytes furnishing same number of ions is same.

Hence, the correct answer is option: 'A'.

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