Pick from the following one chemical used to disinfect water.
  1. Chlorine
  2. Washing soda
  3. Silica
  4. Coal

AcademicChemistryNCERTClass 7

Correct Answer: (a) Chlorine    

Explanation: During wastewater treatment, disinfectant like chlorine is added to the water to kill harmful microorganisms.

raja
Updated on 10-Oct-2022 13:22:17

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