Question

What is meant by the term 'weak acid'?

Answer 1

A weak acid ionises partially or incompletely in an aqueous solution, containing few hydronium ions along with the molecules of the acid. Examples include ${\mathrm{CH}}_3\mathrm{COOH},(\mathrm{COOH}{)}_2\mathrm{and}\mathrm{HCOOH}$.

CH₃COOH ⇌ CH₃COO⁻ + H⁺