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प्रश्न
Answer the following question with reference to the electrorefining of copper:
What do you observe at the cathode?
उत्तर
Pure copper is deposited on the thin sheet of pure copper placed at the cathode.
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संबंधित प्रश्न
Name any five metals which are purified by electrolytic refining method.
Explain how the following metals are obtained from their compounds by the reduction process:
(i) Metal M which is in the middle of the reactivity series.
(ii) Metal N which is high up in the reactivity series.
Give one example of each type
Draw a neat labelled diagram.
Magnetic separation method.
Draw a neat labelled diagram.
Froth floatation method.
Name one metal each occurring as :
A sulphine
Name one metal each occurring as :
A carbonate
Ionic compounds are electrically _______.
Metals are refined by using different methods. Which of the following metals are refined by electrolytic refining?
(i) Au
(ii) Cu
(iii) Na
(iv) K
Give the formulae of the stable binary compounds that would be formed by the combination of following pairs of elements.
- Mg and N2
- Li and O2
- Al and Cl2
- K and O2
Answer the following question with reference to the electrorefining of copper:
What is the anode made of?
