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Class 12Chemistryp-Block Elements (Class 12)Noble gases
Easy

Which of the following noble gases is lighter than air?

  • A
    $Ar$
  • B
    $He$
  • C
    $Kr$
  • D
    None of these
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Class 12 Questions

Class 12

Chemistry Questions

Chapter

p-Block Elements (Class 12)

Subtopic

Noble gases

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