What are the products of electrolysis at cathode and anode when NaCl solution is electrolysed using copper electrode?

Electrolysis of aqueous sodium chlorideElectrolysis of aqueous NaCl results in hydrogen and chloride gas. At the anode (A), chloride (Cl-) is oxidized to chlorine.

What is the product formed at the cathode during the electrolysis of concentrated sodium chloride?

At the cathode (C), water is reduced to hydroxide and hydrogen gas. The net process is the electrolysis of an aqueous solution of NaCl into industrially useful products sodium hydroxide (NaOH) and chlorine gas.

What happens to the concentration of electrolyte solution during electrolysis?

There is an increase in electrolysis efficiency when the electrolyte concentration of the acid is higher at the cathode than at the anode, and the diffusion effect due to the difference in concentration applies.

Which products are obtained on anode and cathode respectively when electrolysis of concentrated NaCl solution is carried out using graphite as electrodes?

The electrolysis of NaCl solution gives H2​ (g) at cathode and Cl2​ (g) at anode.

Which products are obtained on cathode and anode respectively when concentrated aqueous solution of NaCl?

Cl2 on anode, H2 on cathode and NaOH in solution.

What happens when a concentrated solution of sodium chloride is electrolysed?

(a) When a concentrated solution of sodium chloride is electrolysed, it decomposes to form sodium hydroxide, chlorine and hydrogen.

What happens during electrolysis of sodium chloride?

When an electric current is passed through concentrated sodium chloride solution, hydrogen gas forms at the negative electrode , chlorine gas forms at the positive electrode, and a solution of sodium hydroxide also forms.

What happens in electrolysis of NaCl?

Why is chloride oxidized to chlorine at the anode in electrolysis?

Chloride oxidation is more positive than the net voltage of water oxidation. So, chloride is, oxidized to chlorine at the anode. The net reaction taking place is given as; At high salt concentration, hydrogen and chlorine is the product of electrolysis with sodium hydroxide as a by product.

What happens when sodium chloride solution is electrolysed?

Electrolysis of sodium chloride solution When an electric current is passed through concentrated sodium chloride solution, hydrogen gas forms at the negative electrode, chlorine gas forms at the positive electrode, and a solution of sodium hydroxide also forms. You might have expected sodium metal to be deposited at the negative electrode.

Why are Na+ and H+ ions selectively discharged at the anode?

Even though Na + ion is higher than H + ion in the electrochemical series, the Na + ions are selectively discharged because of the effect of the mercury electrode. At the anode: The Cl – ions and OH – ions move to the graphite anode. The Cl – ions are selectively discharged because of their higher concentration in the electrolyte.

What happens at the cathode and anode of a silver nitrate electrode?

Silver metal is deposited on the cathode. At the anode: The NO – ions and OH – ions move to the anode. However, these ions are not discharged. Instead, the silver electrode dissolves to form Ag + ions. Consequently, the concentration of the silver nitrate solution remains unchanged.