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प्रश्न
Show the formation of Na2O by the transfer of electrons.
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उत्तर
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संबंधित प्रश्न
_________ solution is blue in colour.
(a) CuSO4
(b) FeSO4
(c) ZnSO4
(d) Al2(SO4)3
Write the electron-dot structures for sodium, oxygen and magnesium.
Explain the following reaction with the help of a balanced chemical equation:
Magnesium reacts with hot water.
Name two metals which form amphoteric oxides.
What will happen if a strip of copper is kept immersed in a solution of silver nitrate (AgNO3)?
Give reasons for the following:
Blue colour of copper sulphate solution is destroyed when iron filings are added to it.
Explain why, metals usually do not liberate hydrogen gas with dilute nitric acid.
Why is white phosphorus kept immersed under water?
Give one example, with equation, of the displacement of hydrogen by a metal from an acid.
What is the action of water on magnesium? Write equations of the chemical reactions involved.
You are given samples of three metals - sodium, magnesium and copper. Suggest any two activities to arrange them in order of their decreasing reactivities.
Name another metal oxide which behaves like aluminium oxide.
Name one metal which displaces copper from copper sulphate solution.
Name one metal which displaces silver from a silver nitrate solution.
The least reactive metal among the following is:
Choose the correct alternative and rewrite the following:
Reaction of iron nails whith copper sulphate solution is an example of _____________________
The substance that will be flattened on beating with a hammer is ______.
Metals are generally solid. Which of the following metals is in the liquid state at room temperature?
Why is acidified water considered to be a good conductor of electricity?
