Bleaching action of chlorine is by________?
Correct answer: A. Oxidation
- A. Oxidation
- B. Reduction
- C. Decomposition
- D. Hydrolysis
Explanation
Chlorine bleaches coloured substances by oxidation, destroying the chemical groups responsible for colour. Reduction, decomposition, and hydrolysis are not the main bleaching mechanism.
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Chemical principles appear in acids, bases, salts, solutions, oxidation, combustion, corrosion and neutralisation, along with the composition and uses of common substances. Coverage includes soaps and detergents, fertilizers, medicines, food preservatives, polymers, fuels and water treatment, while distinguishing physical changes from chemical reactions.
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