When fused lead bromide is electrolysed we observe: [A]a silver grey deposit at anode and a reddish brown deposit at cathode; [B] a silver grey deposit at cathode and a reddish brown deposit at anode; [C] a silver grey deposit at cathode and reddish brown fumes at anode ; [D] silver grey fumes at anode and reddish brown fumes at cathode

Options

A. A silver-grey deposit at the anode and a reddish brown deposit at the cathode
B. A silver-grey deposit at the cathode and a reddish brown deposit at the anode
C. A silver-grey deposit at the cathode and reddish-brown fumes at the anode
D. Silver grey fumes at the anode and reddish -brown fumes at the cathode

Answer

C

Explanation

The lead bromide breaks into lead and bromine. Hence silver-grey lead is deposited at the cathode, and reddish brown bromine gas is deposited at the anode.