The main contributor to toxicity of detergent:
Correct answer: A. Na-Silicate solution
- A. Na-Silicate solution
- B. Na-sulphate solution
- C. Na-Chloride solution
- D. K-Chloride solution
Explanation
Sodium silicate is an alkaline builder used in detergents and can contribute significantly to their irritant or toxic effects, especially at high concentration. The other listed chloride and sulphate salts are not the main toxic component in this context. Students may select sodium sulphate because it is also present in detergent powders, but it is mainly a filler rather than the principal toxic contributor.
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About Properties of Liquids
Liquid behavior depends on intermolecular forces, which produce surface tension, viscosity, capillary action and a definite volume without a fixed shape. The topic also covers vapor pressure, evaporation, boiling point and the effect of temperature and external pressure, while distinguishing evaporation at the surface from boiling throughout the liquid.
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