Question

define combustion reaction decomposition reaction and placement reaction.​

Answer 1

Answer:

Combustion reaction:-

The reactions in which two or more substances combined to form a single substance under suitable conditions is known as combustion reaction.

ex.- Fe(s) + S(s) ---^heat---> FeS(s)

Decomposition reaction:-

The reaction in which a single substances splits into two or more simple sentences under suitable conditions is known as decomposition reaction.

ex.- CaCO3(s) ---^heat---> CaO(s) +CO2(g)

Displacement reaction:-

The chemical reactions in which one element text the position or place of another element present in a compound is known as displacement reaction.

ex.- Pb(s)+CuCl2(aq) ------> PbCl2(aq)+Cu(s)

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