Question

Identify the type of chemical reactions. $FeS{O_{4}} + Mg \to MgS{O_4} + Fe$

Answer 1

A chemical reaction is a process that results in the chemical change of one set of chemical substances into another set of chemical substances. Chemical reactions are often defined as changes in the locations of electrons in the formation and breaking of chemical bonds between atoms, with no change in the nuclei (no change in the elements present), and may be represented using a chemical equation.

Complete answer:
A displacement reaction occurs when a more reactive ingredient pushes a less reactive element out of its compound. Displacement reactions involve both metals and nonmetals. Metals' chemical reactivity is dependent on their respective locations in the activity series. Certain metals have the ability to displace certain metals from their salts' aqueous solutions. A metal that is higher in the activity series can displace a metal that is lower in the activity series from its salt's aqueous solution. Metals aren't the only ones who experience displacement reactions. These reactions can involve non-metals as well.
When it comes to single displacement reactions, it's crucial to note that elements that produce cations can only displace cations, whereas elements that form anions can only displace anions. When a strip of magnesium metal is immersed in an iron sulphate solution, the iron sulphate's green colour fades and the magnesium metal turns brown as displaced iron deposits on it. The position of magnesium in the reactivity series is higher than that of iron. As a result, it has a higher reactivity than iron and would displace iron from an iron sulphate solution.
$FeS{O_{4}} + Mg \to MgS{O_4} + Fe$

Note:
When a salt of the less reactive metal is present in the solution, displacement reactions are clearly visible. Throughout the reaction: As a solution develops, the more reactive metal progressively fades away. The less reactive metal covers the more reactive metal's surface.