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What is Meant by the Reactivity Series of Metals? Arrange the Following Metals in an Increasing Order of Their Reactivities Towards Water: Zinc, Iron, Magnesium, Sodium - Science

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प्रश्न

What is meant by the reactivity series of metals? Arrange the following metals in an increasing order of their reactivities towards water:
Zinc, Iron, Magnesium, Sodium

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उत्तर

The arrangement of metals in a vertical column in the order of their decreasing reactivity is called the reactivity series of metals.
The increasing order of these metals according to their reactivity with water is:
 Iron < Zinc < Magnesium < Sodium

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अध्याय 3: Metals and Non-metals - Exercise 1 [पृष्ठ १३५]

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लखमीर सिंग Chemistry (Science) [English] Class 10
अध्याय 3 Metals and Non-metals
Exercise 1 | Q 64.1 | पृष्ठ १३५

संबंधित प्रश्न

.................... liberated when acetic acid reacts with sodium metal.
(a) Hydrogen
(b) Chlorine
(c) Oxygen
(d) Nitrogen


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


A solution of _________________ in water is green in colour.

(a) CuSO4
(b) FeSO4
(c) ZnSO4
(d) Al2(SO4)3


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


Complete and balance the following equation:

Na  +  O2 →


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


Arrange the following metals in order of their chemical reactivity, placing the most reactive metal first:
Magnesium, Copper, Iron, Sodium, Zinc, Lead, Calcium.


Name two metals which cannot displace hydrogen from dilute acids.


Can we keep sodium immersed under water? Why?


Name two metals (other than zinc and iron) which can displace hydrogen from dilute hydrochloric acid?


You are given samples of three metals − sodium, magnesium and copper. Suggest any two activities to arrange them in order of their decreasing reactivities.


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


What happens when calcium reacts with water? Write the chemical equation of the reaction of calcium with eater.


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


Metal A burns in air, on heating, to form an oxide A2O3 whereas another metal B burns in air only on strong heating to form an oxide BO. The two oxides A2O3 and BO can react with hydrochloric acid as well as sodium hydroxide solution to form the corresponding salts and water.
(a) What is the nature of oxide A2O3?
(b) What is the nature of oxide BO?
(c) Name one metal like A.
(b) Name one metal like B.


CuSO4(aq) + Fe(s) → FeSO4(aq) + Cu(s)

FeSO4(aq) + Zn(s) → ZnSO4(aq) + Fe(s)

On the basis of the above reactions, indicate which is most reactive and which is least reactive metal out of zinc, copper and iron.


In nature, metal A is found in a free state while metal B is found in the form of its compounds. Which of these two will be nearer to the top of the activity series of metals?


Calcium floats over water during the reaction with water. Give reason.  


Which property of metals is used for making bells and strings of musical instruments like Sitar and Violin?


The substance that will be flattened on beating with a hammer is ______.


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