Let C NaCl and C BaSO 4 , be the conductances (in S) measured for saturated aqueous solutions of NaCl and B a S O 4 respectively, at a temperature T. Which of the following is false?

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(i) Ionic mobilities decreases with increase in temperature due to increase in random motion and hence decrease in relaxation time so derease in drift speed.

(i) $NaCl$ is completely soluble salt while ${BaSO}_{4}$ is sparingly soluble salt so $C_{1} > > C_{2}$ .

(ii) On increasse in temperature conductance increase.

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