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प्रश्न
Answer the following question with reference to the electrorefining of copper:
What do you observe at the cathode?
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उत्तर
Pure copper is deposited on the thin sheet of pure copper placed at the cathode.
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संबंधित प्रश्न
What is meant by refining of a metal? Name the most widely used method for the refining of impure metals obtained by various reduction processes. Describe this method with the help of a labelled diagram by taking the example of any metal.
Name any five metals which are purified by electrolytic refining method.
Draw a neat labelled diagram.
Froth floatation method.
Name one metal each occurring as :
A sulphine
The lightest liquid metal is ____________.
\[\ce{Cu2S + 3Cu2O -> 6Cu + SO2}\]
The above process is:
An electrolytic cell consists of
- positively charged cathode
- negatively charged anode
- positively charged anode
- negatively charged cathode
Which one of the following figures correctly describes the process of electrolytic refining?
What are the constituents of solder alloy? Which property of solder makes it suitable for welding electrical wires?
A reddish-brown metal ‘X’, when heated in air, gives a black compound ‘Y’, which when heated in the presence of H2 gas gives ‘X’ back. ‘X’ is refined by the process of electrolysis; this refined form of ‘X’ is used in electrical wiring. Identify ‘X’ and ‘Y’. Draw a well-labelled diagram to represent the process of refining ‘X’.
