Question

Identify one statement that holds true for electrolysis of molten lead bromide:

Options

• Silver grey metal deposits at the anode.

• Temperature is not maintained during the electrolysis.

• Brown vapours of bromine are obtained at the anode.

• Electrolyte contains H⁺ ions along with Pb²⁺ ions.

Answer 1

Brown vapours of bromine are obtained at the anode.

Explanation:

Negatively charged bromide ions (Br⁻) migrate to the positive electrode (Anode), where they lose electrons and evolve as reddish-brown bromine vapours.