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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
Name the product formed at the anode during the electrolysis of acidified water using platinum electrodes.
When fused lead bromide is electrolysed, we observe ______.
Copy and complete the following table which refers to the conversion of ions to neutral particles.
| Conversion | Ionic equation | Oxidation / Reduction |
| Chloride ion to chlorine molecule | 1)_________ | 2)_________ |
| Lead (II) ion to lead | 3)_________ | 4)_________ |
Explain the following:
Hydrochloric acid is a good conductor of electricity.
How is electrolytic dissociation different from thermal dissociation?
The following Question refer to the electrolysis of copper sulphate solution with copper electrodes:
(a) Compare the change in mass of the anode
(b) What is seen to happen to the colour of the copper sulphate solution if platinum electrodes are used? Explain the observation.
(c) What is the practical application of the electrolysis of copper sulphate solution? Briefly, describe one such application.
A strip of copper is placed in four different colourless salt solutions. They are KNO3, AgNO3, Zn(NO3)2, Ca(NO3)2. Which one of the solutions will finally turn blue?
Why is carbon tetrachloride, which is a liquid, a non-electrolyte?
Select the ion, that would get selectively discharge from the aqueous mixture of the ions listed below :
\[\ce{SO^{2-}_{4}}\], \[\ce{NO^{-}_{3}}\], \[\ce{OH-}\]
From the following list of substances choose those which meet the description given below.
Ammonium chloride, ammonium nitrate, chlorine, dilute hydrochloric acid, iron, lead nitrate, manganese (IV) oxide, silver nitrate, sodium nitrate, sodium nitrite, and sulphur.
Two compounds whose aqueous solutions give white precipitates with dilute hydrochloric acid.
