Identify the type of chemical reaction taking place in the below reaction:
Iron nails when left dipped in blue copper sulfate solution become brownish in color and the blue color of copper sulfate fades away.

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Solution

Displacement reaction:
A chemical reaction in which a more reactive element displaces a less reactive element from its compound is known as displacement reaction.
General representation of the reaction: $A + BC \to AC + B$
This type of reaction is also known as a displacement reaction.
When Iron nails are dipped into copper sulphate, iron nails will displace copper from copper sulphate and make their solution.
The reaction can be written as:
$\underset{Grey}{\underset{⏟}{\underset{Iron}{Fe (s)}}} + \underset{Blue}{\underset{⏟}{\underset{Copper sulphate}{{CuSO}_{4} (aq)}}} \to \underset{Green}{\underset{⏟}{\underset{Ferrous sulphate}{{FeSO}_{4} (aq)}}} + \underset{Brown}{\underset{⏟}{\underset{Copper}{Cu (s)}}}$
6. Here, iron is more reactive than copper so it can easily displace copper.
7. Hence, this is a displacement reaction.

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Identify the type of chemical reaction taking place in each of the following:

Iron nails when left dipped in blue copper(II) sulphate become brownish in colour and the blue colour of copper(II) sulphate fades away.

Study the type of chemical reaction taking place when zine metal reacts with copper sulfate and complete the observation and conclusion.

Things needed: A beaker, zinc metal, copper sulfate solution.

Method:

Observation : (i) Colour changes from sky blue to ........

(ii) The reaction is ................. (exothermic or endothermic).

(iii) ........ metal precipitated as solid.

(iv) Type of reaction ...........

Conclusion: Chemical equation is $Zn + {CuSO}_{4} \to$

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