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प्रश्न
Name one metal each occurring as :
A sulphine
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उत्तर
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संबंधित प्रश्न
What is aqua-regia?
Name one method for the refining of metals.
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.
During the refining of an impure metal by electrolysis, the pure metal is a deposited ______.
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.
Electrolytic reduction of alumina.
Draw a neat labelled diagram.
Hydraulic separation method.
Which of the following process to be carried out to avoid the
formation of greenish layer on brass vessels due to corrosion?
Name one metal each occurring as :
A carbonate
Ionic compounds are electrically _______.
Electrolysis is used to obtain pure metal from impure metal.
The lightest liquid metal is ____________.
In the electrolytic refining of copper, the electrolyte used is:
During electrolytic refining of zinc, it gets
Reaction between X and Y, forms compound Z. X loses electron and Y gains electron. Which of the following properties is not shown by Z?
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 questions with reference to the electrorefining of copper:
Write the reaction taking place at the cathode.
