What is the product of electrolysis of potassium bromide?

in the electrolysis of aqueous potassium bromide are. C) Hydrogen and Bromine .

What is produced at the cathode when potassium bromide is Electrolysed?

Potassium ion is unaffected since metallic potassium reacts with water. Bromide ion is reduced to molecular bromine (Br2) at the anode. Hydrogen gas forms at the cathode.

What are the products obtained by the electrolysis of a solution of potassium chloride?

Answer : On electrolysis of molten potassium chloride, potassium chloride dissociates into K+ and Cl-. The anode is connected to positive terminal and cathode to the negative terminal of the battery.

What would you observe when a concentrated solution of potassium iodide is electrolysed using platinum electrodes?

In the electrolysis of an aqueous solution of potassium iodide, I– ions are oxidized at the anode preferentially to water molecules. Violet colour at anode is due to iodine. Pink colour at cathode is due to formation of OH– ions which renders the solution alkaline. OH– ions give pink colour with phenolphthalein.

What are the products of electrolysis?

Products of electrolysis

• Lead forms at the negative electrode and bromine forms at the positive electrode.
• A silvery grey liquid will form at the cathode (molten lead) though this is difficult to see as it will sink to the bottom as it is denser than the electrolyte.

What are the major products of electrolysis concentrated aqueous potassium iodide KI?

The following oxidation and reduction half-reactions are possible for the electrolysis of potassium iodide solution. The solution contains water molecules, potassium ions (K+), and iodide ions (I–).

What are the products of Electrolysing potassium iodide?

Electrolysis of aqueous potassium iodide, sodium chloride, and copper(II) bromide generates halogen–water solutions.

What are products of electrolysis when molten lead bromide is Electrolysed?

Molten lead bromide, PbBr 2(l), is an electrolyte. During electrolysis: Pb 2+ ions gain electrons at the cathode and become Pb atoms. Br – ions lose electrons at the anode and become Br atoms, which pair up to form Br 2 molecules.