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Single Displacement Reaction:-
A single-displacement reaction, also known as a single-replacement reaction, is a type of chemical reaction where an element reacts with a compound and takes the place of another element in that compound. The starting materials are always pure elements, such as a pure zinc metal or hydrogen gas, plus an aqueous compound. When a replacement reaction occurs, a new aqueous compound and a different pure element will be generated as products.
This type of reaction is typically denoted as AB(aq)+C→A+CB(aq). In this reaction, A is replaced by C in compound AB to make a new compound CB and elemental A. Here A starts out as an ion in solution but appears in its elemental form on the product side. The reactant C does the opposite: it starts out in its elemental form on the reactant side, but it ends up as an ion in aqueous solution as part of the compound CB(aq).
This video explains a single displacement reaction between iron nails and copper sulphate solution.
