Get premium membership and access revision papers with marking schemes, video lessons and live classes.

Processing. Please wait.

Factors affecting electrolysis and electrolytic products.

Answer Text:
Factors affecting electrolysis and electrolytic products.
1. Electrochemical series
- Electrolytic products at the anode and cathode during electrolysis depends on its position in the Electrochemical series.
Cations: The higher the cation in the electrochemical series; the lower the tendency of discharge at the cathode. Reason: Most electropositive cations
require more energy in order to be reduced and therefore are more difficult to reduce.
-Reduction order Anions: Discharge is through oxidation ad is as follows.
2. Concentration of electrolytes A cation or anion whose concentration is higher is preferentially discharge if the ions are close in the electrochemical series.
Example: dilute and concentrated NaCl Product at the anode.
3. The electrodes used: Products obtained at electrodes depend on the types of electrodes used
Examples: in the electrolysis of #CuSO_4# (aq) using carbon and copper rods separately.