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Why is white phosphorus kept immersed under water?

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प्रश्न

Why is white phosphorus kept immersed under water?

अति संक्षिप्त उत्तर
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उत्तर

White phosphorus is kept immersed in water because it spontaneously ignites when exposed to air. But it does not react with water.

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अध्याय 3: Metals and Non-metals - Exercise 1 [पृष्ठ १६६]

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लखमीर सिंग Chemistry [English] Class 10
अध्याय 3 Metals and Non-metals
Exercise 1 | Q 51. (b) | पृष्ठ १६६

संबंधित प्रश्न

What would you observe when zinc is added to a solution of iron (II) sulphate? Write the chemical reaction that takes place.


Write the electron-dot structures for sodium, oxygen and magnesium.


Name the metal which has been placed just below copper in the reactivity series.


What will happen if a strip of zinc is immersed in a solution of copper sulphate?


What will happen if a strip of copper is kept immersed in a solution of silver nitrate (AgNO3)?


How would you show that silver is chemically less reactive than copper?


Give reasons for the following:

Blue colour of copper sulphate solution is destroyed when iron filings are added to it.


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


Magnesium liberates ______ gas on reacting with hot boiling water.


The white powder formed when magnesium ribbon burns in oxygen is of ______.


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


What happens when magnesium reacts with very dilute nitric acid? Write an equation for the reaction involved.


Can we keep sodium immersed under water? Why?


Which of the following pair of reactants can undergo a displacement reaction under appropriate conditions?
(a) MgSO4 + Fe
(b) ZnSO4 + Fe
(c) MgSO4 + Pb
(d) CuSO4 + Fe


A zinc plate was kept in a glass container having CuSO4 solution. On examining it was found that the blue colour of the solution is getting lighter and lighter. After a few days, when the zinc plate was taken out of the solution, a number of small holes were noticed in it. State the reason and give chemical equation of the reaction involved.


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


Generally, metals are solid in nature. Which one of the following metals is found in liquid state at room temperature?


An alkali metal A gives a compound B (molecular mass = 40) on reacting with water. The compound B gives a soluble compound C on treatment with aluminium oxide. Identify A, B and C and give the reaction involved.


Metals are generally solid. Which of the following metals is in the liquid state at room temperature?


Which of the following property is not responsible for copper to be used as electrical conduction wires?


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