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Show the formation of Na2O by the transfer of electrons. - Science

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Show the formation of Na2O by the transfer of electrons.

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पाठ 3: Metals and Non-metals - Intext Questions [पृष्ठ ४९]

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एनसीईआरटी Science [English] Class 10
पाठ 3 Metals and Non-metals
Intext Questions | Q 8. (ii) (a) | पृष्ठ ४९

संबंधित प्रश्‍न

Food cans are coated with tin and not with zinc because ______.


Explain the following reaction with the help of a balanced chemical equation:
Magnesium reacts with hot water.


Why are metals called electropositive elements whereas non-metals are called electronegative elements?


A copper coin is kept immersed in a solution of silver nitrate for some time. What will happen to the coin and the colour of the solution?


Explain why, the surface of some metals acquires a dull appearance when exposed to air for a long time.


Complete and balance the following equation:

Na  +  O2 →


Fill in the following blank with suitable word:

 Magnesium liberates ............... gas on reacting with hot boiling water.


What is the nature of the oxide Na2O? What happens when it is dissolved in water? Write the chemical equation of the reaction involved.


What type of oxides are formed when metals combine with oxygen? Explain with the help of an example.


Describe the reaction of potassium with water. Write the equation of the reaction involved.


What is the action of water on sodium ? Write equation of the chemical reaction involved.


Write one reaction in which aluminium oxide behaves as a basic oxide and another in which it behaves as an acidic oxide.


What special name is given to substances like aluminium oxide.


Name one metal more reactive and another less reactive than hydrogen.


The elements whose oxides can turn phenolphthalein solution pink are:
(a) Na and K
(b) K and C
(c) Na and S
(d) K and P


Out of the following oxides, the amphoteric oxide is:
(a) Fe2O3
(b) Al2O3
(c) P2O5
(d) N2O


Name a metal which It does not react with any physical state of water?


What are noble gases


Write the name and formula of a molecule made up of three atoms of oxygen.


Write the chemical equation for the following reaction:
Cinnabar is heated in the presence of air.


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