Question

Define displacement reaction. Give one example.​

Answer 1

Explanation:

A reaction in which strongest element displaces the other element is called displacement reaction

A+B=CD

If A is stronger

then A+B=AD+C

hope it helps you

Answer 2

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☛ Those reactions in which one element takes the place of another element in a compound are known as displacement reaction.

for example:-

When a strip of zinc metal is placed in copper sulphate Solution ,then zinc sulphate Solution and copper are obtained:

$\rm\:CuSO_4(aq)+Zn(s)\longrightarrow\:ZnSO_4(aq)+Cu(s)$

☛ This reaction takes place because zinc is more reactive than copper.

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☛ Double displacement reaction:-Those reaction in which two compounds react by an exchange of ions to form two new compounds are called double displacement reaction.

For example:-

When silver nitrate Solution is added to sodium chloride Solution ,then a white precipitate of silver chloride is formed along with sodium Nitrate Solution.

$\rm\:AgNO_3(aq)+NaCl(aq)\longrightarrow\:AgCl(s)+NaNO_3(aq)$