Question

The basicity of Sulphurous acid $\left({\mathrm{H}}_2{\mathrm{SO}}_3\right)$is________ ?

Answer 1

Basicity:

• The number of hydronium ions $\left({\mathrm{H}}_3{\mathrm{O}}^{+}\right)$ that can be formed by ionizing one molecule of acid in an aqueous solution is known as the acid’s basicity.

Sulfurous Acid

• $\left({\mathrm{H}}_2{\mathrm{SO}}_3\right)$ is a chemical compound with the chemical name Sulphurous acid.
• The other names of Sulfurous acids are Sulfur dioxide solution Dihydrogen thiosulfate or Trioxosulfuric acid.
• Trioxosulfuric acid is a colorless liquid with a strong burning sulfur odor.
• It is corrosive to tissue and metals. It is a sulfur oxoacid, tautomer of a sulfonic acid, and conjugate acid of a hydrogen sulfite.
• It yields two hydronium ions.

Hence, the basicity of Sulphurous acid $\left({\mathrm{H}}_2{\mathrm{SO}}_3\right)$is two.