Define different types of chemical reaction and give examples for each.
Different types of chemical reaction are: (a) Combination reactions: The reaction in which two or more than two substance 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 substance is called decomposition reaction. e.g. CaCO3ΔCaO+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+Cu (d) Double displacement reaction: The reaction in which two different atoms or groups of (substance) atoms exchange for each other is called double displacement reaction. e.g. Na2SO4(aq)+BaCl2(aq)→BaSO4(s)+2NaCl(aq) (e) Oxidation reduction reaction: The reaction in which oxygen is added/ hydrogen is removed is called oxidation reaction. Example oxidation of copper shown in image The reaction in which hydrogen is added/ oxygen in removed is called reduction reaction.
