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Can We Keep Sodium Immersed Under Water? Why? - Science

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प्रश्न

Can we keep sodium immersed under water? Why?

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उत्तर

 No, we cannot keep sodium immersed in water because it reacts vigorously even with cold water to form sodium hydroxide, hydrogen gas and a huge amount of heat.

 2Na(s) + 2H2O(l) → 2NaOH(aq) + H2(g) + HEAT

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अध्याय 3: Metals and Non-metals - Exercise 1 [पृष्ठ १३४]

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लखमीर सिंग Chemistry (Science) [English] Class 10
अध्याय 3 Metals and Non-metals
Exercise 1 | Q 51.3 | पृष्ठ १३४

संबंधित प्रश्न

_________ solution is blue in colour.
(a) CuSO4
(b) FeSO4
(c) ZnSO4
(d) Al2(SO4)3


Why is sodium kept immersed in kerosene oil?


Which gas is produced when dilute hydrochloric acid is added to a reactive metal? 


What name is given to those metal oxides which show basic as well as acidic behaviour?


Which of the two metals is more reactive: copper or silver?


Complete and balance the following equation:

Na  +  O2 →


Fill in the following blank with suitable word:

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


Explain why, metals usually do not liberate hydrogen gas with dilute nitric acid.


How do metals react with hydrogen? Explain with an example.


What happens when calcium reacts with chlorine? Write an equation for the reaction which takes place


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


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


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


What special name is given to substances like aluminium oxide.


Hydrogen is not a metal but still it has been assigned a place in the reactivity series of metals. Why?


Out of aluminium, copper, calcium and tin, the most reactive metal is:
(a) aluminium
(b) copper
(c) tin
(d) calcium


An element X forms two oxides XO and XO2. The oxide XO has no action on litmus solution but oxide XO2 turns litmus solution red.
(a) What is the nature of oxide XO?
(b) What is the nature of oxide XO2?
(c) Would you call element X a metal or a non-metal? Give reason for your choice.
(d) Can you give an example of element like X?


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


What are noble gases


Arrange the following metals in the increasing order of their reactivities:

Copper, Zinc, Aluminium, and Iron


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