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

CBSE BoardEnglish MediumSTD 12 ScienceChemistryp -Block elements - ll1 Mark
MCQ
The charcoal maintained at ${100^o}\,C$ absorbs
  • A
    $Ne$ and $Kr$
  • B
    $He$ and $Ar$
  • ✓
    $Ar,$ $Kr,$ $Xe$
  • D
    $He$ and $Ne$
✓

Answer

Correct option: C.
$Ar,$ $Kr,$ $Xe$
c
(c) Except $He$, all other noble gases are adsorbed by coconut charcoal at low temperatures. The extent of adsorption increases as the atomic size of the noble gas increases.

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