QuestionElectrochemistry / anomalous transport numbers, complex ions
Consider the following table showing the apparent transport numbers of Cd²⁺ ion in CdI₂ solutions of different molalities :
Which one of the following interpretations is correct with respect to the table given above?
- (a) In dilute solutions, Cd²⁺ ion migrates towards the anode and I⁻ migrates towards the cathode and vice versa in concentrated solutions.
- (b) In dilute solutions, Cd²⁺ ion migrates towards the cathode and I⁻ migrates towards the anode and vice versa in concentrated solutions.
- (c) In dilute solutions, Cd²⁺ ion migrates towards the cathode and I⁻ migrates towards the anode and in concentrated solutions, Cd²⁺ ion migrates towards the cathode and CdI₄²⁻ migrates towards the anode.
- (d) In dilute solutions, Cd²⁺ ion migrates towards the anode and I⁻ migrates towards the cathode and in concentrated solutions, Cd²⁺ ion migrates towards the anode and CdI₄²⁻ migrates towards the cathode.
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