Question

4. Give one example each of displacement, decompostion and combination reaction with
explanation.
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Answer 1

DECOMPOSITION REACTION-

Calcium Carbonate-Caco3 ------>Calcium oxide(CaO) + Carbon dioxide(CO2)

DISPLACEMENT-

Mg+CuSO4---->MgSO4+Cu

COMBINATION-

2H2+O2---->2H20

Explaination-

Decomposition reactions are also known as analysis reactions or chemical breakdowns. The opposite of this type of reaction is a synthesis, in which simpler reactants combine to form a more complex product.

A displacement reaction is a type of reaction in which part of one reactant is replaced by another reactant. A displacement reaction is also known as a replacement reaction or a metathesis reaction.

combination reaction (also known as a synthesis reaction) is a reaction where two or more elements or compounds (reactants) combine to form a single compound (product