. Choose the incorrect statement about noble gas


A. Boiling point increases with increasing atomic mass

B. Helium has least tendency to form compound

C. Noble gases has some value of electron affinity

D. Xenon has maximum number of compounds

 

Best Answer

(c)

(a) Intermolecular van der Waals force exists between atoms of noble gases. The magnitude of these forces increases with increasing atomic mass which directly related to boiling point. 

(b) As ionization energy of helium is maximum, thus, electron lightly held to the nucleus and therefore has least tendency to form compound. 

(c) As Xenon has lowest ionisation energy, they have maximum number of compounds.

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