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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