State the observations at anode and cathode during electrolysis of:
Fused lead bromide using graphite electrode.

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Solution

Electrolysis of lead bromide :- ${PbBr}_{2} (l) \to Pb (s) + {Br}_{2} (g)$
At cathode:- ${Pb}^{2 +} + 2 e^{-} \to Pb$
At anode:- $2 {Br}^{-} (l) \to {Br}_{2} (g) + 2 e^{-}$
During electrolysis of lead bromide using graphite electrodes observations are:-
At cathode:- Greyish white metal lead is formed.
At anode:- Dark reddish brown fumes of bromine evolved.

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(b) During electrolysis of molten lead bromide, graphite anode is preferred to other electrodes. Give reason.

Q. State the observations at the anode and at the cathode during the electrolysis of:
Fused lead bromide using graphite electrodes.

State the observations at the anode and at the cathode during the elecfrolysis of:
(i) fused lead bromide using graphite electrodes.
(ii) copper sulphate solution using copper electrodes.

During electrolysis of molten lead bromide, graphite anode is preferred to other electrodes. Give reasons.

State the observations at the anode and cathode during electrolysis of:

ii) Copper Sulphate solution using copper electrodes.

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State the observations at anode and cathode during electrolysis of: Fused lead bromide using graphite electrode.

Electrolysis of lead bromide :- PbBr2(l)→Pb(s)+Br2(g)At cathode:- Pb2++2e-→PbAt anode:- 2Br-(l)→Br2(g)+2e-During electrolysis of lead bromide using graphite electrodes observations are:-At cathode:- Greyish white metal lead is formed.At anode:- Dark reddish brown fumes of bromine evolved.

State the observations at anode and cathode during electrolysis of:
Fused lead bromide using graphite electrode.