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p -Block elements - ll — Chemistry STD 12 Science — Question

CBSE BoardEnglish MediumSTD 12 ScienceChemistryp -Block elements - ll1 Mark
MCQ
Percentage of $Ar$ in air is about
  • ✓
    $1\%$
  • B
    $2\%$
  • C
    $3\%$
  • D
    $4\%$
✓

Answer

Correct option: A.
$1\%$
a
Percentage of $Ar$ in air is $0.93 \,\%$, which is about $1\, \%$.

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