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JEE · NEET Previous Year Question

$Inert gases have positive electron gain enthalpy. Its correct order is$

Topic: JEE PYQ

Answer: C. Full step-by-step solution below.

A $Xe < Kr < Ne < He$
B $He<Ne<Kr<Xe$
C $He<Xe<Kr<Ne$
D $He<Kr<Xe<Ne$

Correct answer: C

Solution

(c) Element ∆ egH[KJ/mol] He +48 Ne +116 Kr +96 Xe +77 From NCERT So, order is Ne > Kr >Xe> He

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