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Class 11ChemistryEnvironmental ChemistryEnvironmental Study
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Water is considered to be polluted if the dissolved oxygen $(D.O.)$ content is less than $...$ $ppm$ :

TS EAMCET 2003All TS EAMCET
AP EAMCET 2003All AP EAMCET
  • A
    $5$
  • B
    $10$
  • C
    $15$
  • D
    $100$
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Class 11 Questions

Class 11

Chemistry Questions

Chapter

Environmental Chemistry

Subtopic

Environmental Study

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