The noble gases heavier than air areA. ArB. HeC. NeD. Kr. – InterviewSolution

1.	The noble gases heavier than air areA. ArB. HeC. NeD. Kr.
Answer» Correct Answer - A::D Out of the given four noble gases only Ar (At. Mass 39) and (Kr (At. Mass 84) are heavier than air. He (At. Mass 4) and Ne (At. Mass 20) are lighter than air.

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