Chemical Engineering
Q Presence of carbonaceous matter in the sewage____________________?
  • A A. Causes reduction in its dissolved oxygen content thereby endangering the life of aquatic
  • B CreAtures
  • C B. Reduces sulphate ions to sulphides causing obnoxious smell
  • D C. Increases the quantity of chlorine used for its purification
Previous Lithophane is ___________________?
Next Dechlorination of treated water is necessary to _______…
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