Carboxymethyl cellulose (CMC) is added in detergents to_________________?
Correct answer: B. Prevent redeposition of soil on cleaned surface
- A. Act as optical brightening agent
- B. Prevent redeposition of soil on cleaned surface
- C. Inhibit corrosion in washing machines made of aluminium
- D. None of these
Explanation
CMC keeps loosened soil particles dispersed in the wash liquor, preventing them from settling back onto the cleaned fabric. Optical brighteners are separate additives that improve whiteness by fluorescence.
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