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MCQ:

In water, most oxidizing agent is dissolved O2 in the concentration ranges from

  1. 2 - 4 ppm
  2. 4 - 8 ppm
  3. 3 - 6 ppm
  4. 8 - 10 ppm

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Compounds of Environmental Concern App (Android & iOS)

Compounds of Environmental Concern App (Android & iOS)

A level Chemistry App (Android & iOS)

A level Chemistry App (iOS & Android)

College Chemistry App (Android & iOS)

College Chemistry App (Android & iOS)

10th Grade Chemistry App (Android & iOS)

10th Grade Chemistry App (iOS & Android)