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Class 12ChemistryGeneral Principles and Processes of Isolation of ElementsOccurrence
Easy

What percentage of the Earth's crust by mass is composed of oxygen (in $\%$)?

  • A
    $46.6$
  • B
    $27.7$
  • C
    $8.1$
  • D
    $5.0$
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Class 12 Questions

Class 12

Chemistry Questions

Chapter

General Principles and Processes of Isolation of Elements

Subtopic

Occurrence

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