What is the difference between displacement and double displacement

Asked by admin @ 20/08/2021 in Physics viewed by 334 People

What is the difference between displacement and double displacement reaction? Give suitable chemical equations for the same. (3 marks)

Answered by admin @ 20/08/2021

${\bold{\blue{\underline{\red{An}\pink{sw}\green{er}\purple{:-}}}}}$

$\bigstar{\underline{\boxed{\bf\red{Displacement\:reaction:-}}}}$

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

☛ In general,a more reactive element displace a less reactive element from it's compound.

☛ Example:- when a strip of zinc metal is placed in copper sulphate Solution ,then zinc sulphate Solution and copper are obtained.

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

$\bigstar{\underline{\boxed{\bf\pink{Double\:displacement\:reaction:-}}}}$

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

☛ A double displacement reaction usually occurs in Solution and one of the products,being insoluble out.

☛ 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.

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

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What is the difference between displacement and double displacement

${\bold{\blue{\underline{\red{An}\pink{sw}\green{er}\purple{:-}}}}}$

$\bigstar{\underline{\boxed{\bf\red{Displacement\:reaction:-}}}}$

$\bigstar{\underline{\boxed{\bf\pink{Double\:displacement\:reaction:-}}}}$

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