Question

Name different types of chemical reactions. Give one example for each.

Answer 1

Different types of chemical reactions are:

(a) Combination reactions: The reaction in which two or more than two substances combine together to form a single compound.
e.g., 2Mg + O₂ → 2MgO

(b) Decomposition reaction: The reaction in which a compound decomposes to form two or more substances is called decomposition reaction.
e.g., CaCO₃  CaO + CO₂

(c) Displacement reaction: The reaction in which more reactive metal displaces the less reactive metal is called displacement reaction.

e.g., Fe + CuSO₄ → FeSO₄ + CO₂

(d) Double displacement reaction: The reaction in which two different atoms or groups of (substances) atoms exchange for each other is called double displacement reaction.

e.g., NaO₂SOO₄(aq) + BaClO₂(aq) → BaSOO₄(s) + 2NaCl(aq)

(e) Oxidation-reduction reaction: The reaction in which oxygen is added/ hydrogen is removed is called oxidation reaction.
The reaction in which hydrogen is added/oxygen is removed is called reduction reaction. e.g., Oxidation,