Advertisements
Advertisements
प्रश्न
Write the equations for the reactions, which takes place at the electrodes during the electrolysis of lead bromide?
उत्तर
Equations for the reactions, which takes place at the electrodes : -
At Cathode :
Pb+2 + 2e- → Pb
At anode :
Br- + e- → Br
Br+Br → Br2.
APPEARS IN
संबंधित प्रश्न
State one relevant observation for the following:
At the anode, when molten lead bromide is electrolyzed using graphite electrodes.
Define the term : Non-electrolyte
A solution of caustic soda (NaOH) in water or when fused, conducts an electric current. what is the similarity in these two cases?
What is meant by the term 'electrolyte'?
Correct the sentence by adding word(s)
The electrolysis of lead bromide liberates lead and bromine.
Explain how electrolysis is an example of Redox reaction.
Fill in the blank :
The _______ the concentration of an ion in a solution, the greater is the probability of its being discharged at its appropriate electrode.
Three different electrolytic cells, A, B and C are connected in separate circuits. Electrolytic cell A contains a sodium chloride solution. When the circuit is completed, a bulb in the circuit glows brightly. Electrolytic cell B contains an acetic acid solution and in this case, the bulb in the circuit glows dimly. The electrolytic cell C contains a sugar solution and the bulb does not glow. Give a reason for each of these observations.
Differentiate between the electrical conductivity of copper sulphate solution and copper metal.
Give appropriate scientific reasons for the following statement:
During electrolysis of molten lead bromide, graphite anode is preferred to other electrodes.
