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Neutralisation reaction is a type of:
combination reaction
decomposition reaction
displacement reaction
double displacement reaction
double displacement reaction
A neutralisation reaction is a type of double displacement reaction (specifically, a double decomposition reaction) where an acid and a base react to form salt and water. During this reaction, the cations and anions of the reactants exchange partners to form the products.
A neutralisation reaction is a type of double displacement reaction (specifically, a double decomposition reaction) where an acid and a base react to form salt and water. During this reaction, the cations and anions of the reactants exchange partners to form the products.
Think of it like two couples at a dance swapping partners at the same time: Acid (H+AтИТ) and Base (B+OHтИТ) switch components so that B+ pairs with AтИТ to form salt, and H+ pairs with OHтИТ to form water.
Acid + Base = Salt + Water (ABSW - Acid and Base Switch and Wash)
HX+MOHтЖТMX+H2тАЛO тАФ General neutralisation equation where HX is an acid and MOH is a base
H+(aq)+OHтИТ(aq)тЖТH2тАЛO(l) тАФ Net ionic equation for neutralisation
In an aqueous medium, an acid releases H+ (or H3тАЛO+) ions while a base releases OHтИТ ions. The double displacement occurs as the H+ ion combines with the OHтИТ ion to form neutral water (H2тАЛO), while the remaining metal cation and acid anion combine to form a salt.
Neutralisation is generally an exothermic process, releasing heat during salt and water formation.
The net ionic equation for strong acid and strong base neutralisation is always H++OHтИТтЖТH2тАЛO.
pH of the resulting solution depends on the strength of the reacting acid and base (e.g., strong acid + strong base gives pH = 7).
Antacids containing magnesium hydroxide Mg(OH)2тАЛ are used to neutralise excess hydrochloric acid (HCl) in the stomach.
Slaked lime (Ca(OH)2тАЛ) is added to acidic soil by farmers to neutralise soil acidity and improve crop growth.
Option A (Combination reaction): Two or more reactants combine to form a single product (A+BтЖТAB).
Option B (Decomposition reaction): A single reactant breaks down into two or more simpler products (ABтЖТA+B).
Option C (Displacement reaction): A more reactive element displaces a less reactive element from its compound (A+BCтЖТAC+B).
D is correct тАФ Neutralisation involves the mutual exchange of ions between an acid and a base to produce salt and water, making it a double displacement reaction.
Remember that all neutralisation reactions are double displacement reactions, but not all double displacement reactions are neutralisation reactions (e.g., precipitation reactions are also double displacement).
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