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Class 11ChemistryEnvironmental ChemistryEnvironmental Study
Medium

What is the maximum permissible limit of lead in drinking water in $ppb$?

  • A
    $30$
  • B
    $70$
  • C
    $50$
  • D
    $60$
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Class 11 Questions

Class 11

Chemistry Questions

Chapter

Environmental Chemistry

Subtopic

Environmental Study

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