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Question
Select the ion in the following case, that would get selectively discharged from the aqueous mixture of the ions listed below:
Pb2+, Ag+ and Cu2+
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Solution
Ag+ ions will get discharged in preference to Pb2+ or Cu2+ ions.
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RELATED QUESTIONS
Select the ion in the following case, that would get selectively discharged from the aqueous mixture of the ions listed below:
\[\ce{SO^2-_4, NO^-_3 {and} OH-}\]
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Contain only ions.
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On electrolysis of dilute copper (II) sulphate solution, copper is deposited at the cathode but no hydrogen gas evolves there. Explain why?
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When a dilute aqueous solution of sodium chloride is electrolysed between platinum electrodes, hydrogen gas is evolved at the cathode but metallic sodium is not deposited. Why?
Arrange the following according to the instruction given in bracket:
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