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Question

Noble gas are adsorbed by:

A
anhydrous calcium chloride
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B
ferric hydroxide
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C
concentrated H2SO4
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D
activated coconut charcoal
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Solution

The correct option is D activated coconut charcoal
Noble gases are adsorbed by coconut charcoal. The adsorption of different noble gases occurs at different temperatures. Hence, charcoal is used to separate these gases. Helium is not adsorbed by charcoal.

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