If X displaces Y form its solution. This is known as displacement reaction. What is the other chemical name which you will give for this type of reaction.

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Solution

When a reaction involves an element which displaces another in a compound, it is called a single substitution or single replacement reaction. The name "displacement reaction" is also used. For example, a copper strip dipped in a silver nitrate solution will displace silver atoms, producing copper nitrate and precipitating silver metal crystals.
Cu(s) + 2AgNO3(aq) -> 2 Ag(s) + Cu(NO3)2(aq)
If zinc metal is dipped into an acid, the zinc will displace the hydrogen from the acid.
ZN(s) + 2HCl(aq) -> 2 H2(g) + ZnCl2(aq)
Generally, active metals will displace hydrogen from an acid.

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