Neutralization Reaction - Definition, Examples, Equation, Uses, FAQs

Define neutralization reaction

Neutralization reactions can be defined as chemical reactions in which the acid and base work equally to form salt and water as products. In response to the neutralisation reaction, there is a combination of H+ ions and OH- ions forming water. The neutralisation reaction is usually an acid-base neutralization reaction. Relationship between energy reactants and emerging PH

Depending on the strength of the standard acids and bases the pH of the products varies.

Acid Energy Base Energy Resultant pH

Strong 7

Strong Strength <7

You Have the Power of Weakness> 7

We are weak If,

Ka> Kb => pH <7

Ka = Kb => pH = 7

At <Kb => pH> 7

Neutralization reaction equation

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acid + base (alkali) → salt + water

Mathematics - Neutralization Response

Neutrality Reaction Equation

neutralization reaction examples

Composition of Sodium Chloride (Normal Salt):

HCl + NaOH → NaCl + H2O

Transmission methods using phenolphthalein reaction

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Uses of Neutralization reaction

1. Titration methods

The chemical input method was used to obtain an unknown concentration of acids or bases by obtaining their point of neutrality. To find the point where neutrality occurs, we use a pH indicator or pH meter. With the help of simple stoichiometric calculations and the knowledge of volume and quantity of known quantities, the size of unknown particles can be obtained.

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2. Waste water treatments

Most of the waste that comes in the form of industrial pollution has its rightful place of toxins that will be harmful to our environment. Therefore, we need to reduce their toxicity before they can be thrown out. Depending on the application, different chemicals are used. Other common examples are Sodium Bicarbonate, Magnesium Hydroxide, Calcium oxide, Calcium Carbonate.

3. Nanomaterial synthesis

To facilitate the chemical reduction of metal precursors, the heat transfer reaction is used.

4. In our digestive systems

When food is transported between our stomach and intestines, food needs to be digested. Antacid bicarbonate is produced to create this ideal condition.

5. Soil PH control

In order for plants to grow well in any soil, there are certain conditions that are required.

Some examples of substances mixed in the soil to reduce it from acid are:

Calcium Carbonate (Limestone)

Calcium Hydroxide (Soda lime)

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What is a neutralization reaction?

Neutralise meaning or Neutralization reaction meaning are another type of chemical reaction that persists even if a single reactant is not in the active phase.

3HCl(aq) + Fe(OH)3(s) → 3H2O(ℓ) + FeCl3(aq)

or Fe(OH)3 does not melt. When one understands that the Fe(OH)3(s) are part of rust, this explains why some rust-cleaning solutions contain acids - the neutralization reaction produce product that dissolve and are washed away. (Washing with HCl-like acids is one way to remove rust and rust, but HCl should be used with caution!)

HCl(aq) + NaOH(aq) → H2O(ℓ) + NaCl(aq)

Related Topics Link

  • Ph of Acids and Bases
  • Oxidation and Reduction
  • Oxidizing Agent
  • Reducing Agent

complete ionic reaction

H+(aq) + Cl-(aq) + Na+(aq) + OH(aq) → H2O(ℓ) + Na+(aq) + Cl(aq)

Na+(aq) and Cl-(aq) ions are spectators, so we can remove them to have them

H+(aq) + OH(aq) → H2O(ℓ)

as an ionic net equation. If we wanted to write this in terms of hydronium ion, H3O+(aq) we could write it as

H3O+(aq) + OH(aq) → 2H2O(ℓ)

In addition to the introduction of an additional water molecule, these two ionic figures are equal.

However, by reacting between HCl(aq) and Cr(OH)2(s), since chromium (II) hydroxide is insoluble, we can’t separate it in ions of complete ionic equilibrium

2H+(aq) + 2Cl(aq) + Cr(OH)2(s) → 2H2O(ℓ) + Cr2+(aq) + 2Cl(aq)

Chloride ions are the only ion spectators here, so the net ionic equation is

2H+(aq) + Cr(OH)2(s) → 2H2O(ℓ) + Cr2+(aq)

Neutralization Reaction Examples:

1. Write a neutralization (neutral) reaction between the acid and each base.

HNO3(aq) and BaOH2(aq)

H3PO4(aq) and CaOH2(aq)


First, we will list the chemical equations and formulas of reactants and expected products; then we will measure the number.

Expected water and barium nitrate products, so the initial chemical reaction is the same


Thus, 2HNO3(aq)+BaOH2(aq)→2H2O(l)+Ba(NO3)2(aq)

This chemical equation is now rated.

Expected products of water and calcium phosphate, hence the first chemical reaction


To balance the equation:


This chemical equation is rated.

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NCERT Chemistry Notes:

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