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प्रश्न
Explain, why copper though a good conductor of electricity is, a non- electrolyte.
उत्तर
Copper metal is solid and has no mobile ions whereas an electrolyte should dissociate into oppositely charged ions to conduct the electric current.
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संबंधित प्रश्न
State the observations at the anode and at the cathode during the electrolysis of fused lead bromide using graphite electrodes
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)
Molten lead bromide conducts electricity. It is called an ______. It is composed of lead ______ and bromide ______. The lead ions are ______ charged and are called ______. The bromide ______ are ______ charged and are called ______.
Substances which conduct electricity in the solid state are generally ______.
Explain the term : Electro metallurgy
Al+3 ,Cu+2 ,Na+ ,Zn+2 ions are present in aqueous solution, such that the concentration of ions is same, write the order of discharge of ions.
Here is an electrode reaction:
\[\ce{Cu -> Cu^{2+} + 2e^-}\]
At which electrode (anode or cathode) would such a reaction take place? Is this an example of oxidation?
The following is a sketch of an electrolytic cell used in the extraction of aluminium:
- What is the substance of which the electrodes A and B are made?
- At which electrode (A or B) is aluminium formed?
- What are the two aluminium compounds in the electrolyte C?
- Why is it necessary for electrode B to be continuously replaced?
Write the equation taking place at the anode.
State the observation at the anode and at the cathode during the electrolysis of :
Fused lead bromide using graphite electrodes
