Answer: (d) the chemical change that cannot be reversed.
It is a chemical reaction where acid and base reacts with each other quantitatively. Neutralization is an irreversible process.
A neutralization reaction can be defined as a chemical reaction in which an acid and base quantitatively react together to form a salt and water as products. The chemical equation of neutralization reaction is
acid + base(alkali) → salt + water
Examples of neutralization reaction
Few examples of neutralization reactions are
- Formation of Sodium Chloride (Common Salt): HCl + NaOH → NaCl + H2O
- Titration methods using phenolphthalein.