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List of top General Awareness Questions on Wastewater Treatment Plant (WWTP)

Washing soda is used:
1. for removing permanent hardness of water
2. for disinfecting drinking water
3. as a cleaning agent for domestic purpose
Which of the above is/are correct?
  • IPU CET - 2023
  • IPU CET
  • General Awareness
  • Wastewater Treatment Plant (WWTP)