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Question
Which one of the following does not exist?
Options
XeOF4
NeF2
XeF2
XeF6
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Solution
NeF2
Explanation:
NeF2 does not exist. This is because the sum of first and second ionisation enthalpies of Ne are much higher than those of Xe. Consequently, F2 can oxidise Xe to Xe2+ but cannot oxidise Ne to Ne2+.
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