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प्रश्न
Name the metallic ions that should be present in the electrolyte when an article made copper is to be electroplated with silver
उत्तर
Ag+ and Na+
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संबंधित प्रश्न
Complete the following by selecting the correct option from the choices given:
The divalent metal whose oxide is reduced to metal by electrolysis of its fused salt is __________. (Al/Na/Mg/K)
When fused lead bromide is electrolysed, we observe ______.
A solution of HCl gas in water conducts electricity because ______, but a solution of HCl gas in toluene does not conduct an electric current because ______.
State the factors that influence the preferential discharge of ions at the electrodes.
How is electrolytic dissociation different from thermal dissociation?
If a fused metallic chloride is electrolyzed, at which electrode would the metal be obtained?
Find the odd one out from the following and explain your choice : Al(OH)3, Pb(OH)2,Mg(OH)2,Zn(OH)2
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.
Give reasons why in the electroplating of an article with silver, the electrolyte sodium argentocynide solution is preferred over silver nitrate solution.
Classify the following substance:
Carbon tetrachloride
