The atoms of which of the following pair of elements are most likely to exist in free state ?
(a) hydrogen and helium (b) argon and carbon (c) neon and nitrogen (d) helium and neon

Academic Chemistry NCERT Class 9

Correct Answer: (d) helium and neon

Explanation: Atoms of helium and neon exist in a free state because they are inert gases and chemically inactive.

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Updated on: 10-Oct-2022

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