Question

Test to distinguish between sulphuric acid and sulphurous acid

Answer 1

Sulphuric acid and Sulphurous acid are two such compounds which are acids. The main difference between sulphuric acid and sulphurous acid is that sulphuric acid has the chemical formula H2so4 and is a good oxidizing agent whereas sulphurous acid hasthe chemical formula H2SO3 and is a good reducing agent.

The key difference between sulfuric acid and sulfurous acid is that they have different oxidation number of sulfur and sulfuric acid is comparatively more acidicthan sulfurous acid . Thee formula of sulphiric acid is H2SO4 while that of sulphurus acid is H2SO3.

Answer 2

Answer:

• Sulphuric acid, known in antiquity as oil of vitriol, is a mineral acid composed of the elements sulfur, oxygen and hydrogen, with the molecular formula H₂SO₄. It is a colorless, odorless and viscous liquid that is miscible with water.
• Sulfurous acid is the chemical compound with the formula H₂SO₃. There is no evidence that sulfurous acid exists in solution, but the molecule has been detected in the gas phase. The conjugate bases of this elusive acid are, however, common anions, bisulfite and sulfite.
• Sulphuric acid or H₂SO₄ is more stronger acid than Sulfurous acid or H₂SO₃ .

Hence,

The key difference between sulphuric acid and sulfurous acid is in the oxidation number of Sulphur. In other words, sulphuric acid is a very strong acid, and sulfurous acid is relatively weak. The key difference between sulphuric acid and sulfurous acid is in the oxidation number of Sulphur.

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