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CHEMISTRY

JAMB 2004 - Question 34

Chemistry 2004 JAMB Past Questions - Question 34: Sulphur (IV) oxide bleaches by

Choose the correct answers from the options given.

Sulphur (IV) oxide bleaches by

A: reduction

B: oxidation

C: hydration

D: adsorption

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Correct Answer

Explanation

Sulfur dioxide (SO2), also known as sulfur (IV) oxide, bleaches by reduction. In bleaching processes, sulfur dioxide acts as a reducing agent. It can reduce colored compounds, such as those found in certain dyes or pigments, by accepting electrons and causing a chemical reduction reaction. This reduction process leads to the removal of color, resulting in a bleaching effect.