Multiple choice

The reagent that bleaches the colour of a fabric is

  1. sodium chloride

  2. sulphur dioxide

  3. carbon dioxide

  4. sulphur trioxide
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Sulphur dioxide is a common bleaching agent, particularly for delicate materials like wool and silk, as it acts as a reducing agent to remove color.

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