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  4. Compound formed when noble gases get entrapped in the cavities of crystal lattice of certain organic and inorganic compounds are called

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Q. Compound formed when noble gases get entrapped in the cavities of crystal lattice of certain organic and inorganic compounds are called

NTA AbhyasNTA Abhyas 2020The p-Block Elements - Part2

Solution:

Normal chemical compounds have ionic or covalent bonds. However, in the clathrates, atoms or molecules of the appropriate size such as Ar, Kr and Xe may be trapped in cavities in the crystal lattice of other compounds such as frozen water of frozen aq. solution of quinol (1,4-dihydroxy benzene). Though the noble gases are trapped, yet they do not form bonds.

He and Ne do not form clathrate compounds, because these atoms are small enough to escape from the cavities.