Bio-degradable detergents ___________________?
Correct answer: C. Can be readily oxidised
- A. Have an isoparaffinic structure
- B. Pose problem in sewerage plant
- C. Can be readily oxidised
- D. Should not be used as it spoils the cloth
Explanation
Biodegradable detergents are readily attacked and oxidised by microorganisms, so they break down in the environment. Persistent detergents resist this oxidation and can cause foaming and pollution in sewage systems.
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