Biodegradable pollutant is:_____________?
Correct answer: C. Domestic waste
- A. DDT
- B. mercury salt
- C. Domestic waste
- D. Aluminum foil
Explanation
Domestic waste contains biodegradable materials such as food residues and paper that microorganisms can decompose. DDT, mercury salts and aluminium foil are persistent or non-biodegradable pollutants. The likely wrong choice is DDT because it is a familiar pollutant, but its persistence prevents normal biodegradation.
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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.
Practise Liquids
350 free Liquids MCQs from Chemistry, each with the correct answer and an explanation. Unlimited attempts, no account needed.
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