Which statement about noble gases is not correct?

Which statement about noble gases is not correct?
  1. 'Xe' forms $\mathrm{XeF}_6$ under suitable conditions
  2. 'Ar' is used in electric bulbs
  3. The number of lone pair of electrons present on $\mathrm{Xe}$ in $\mathrm{XeF}_2$ is 3.
  4. 'He' has the highest boiling point among all the noble gases

Solution

(d) (a) $\mathrm{Xe}+3 \mathrm{~F}_2 \stackrel{\Delta}{\longrightarrow} \mathrm{XeF}_6$ (b) Ar used in electric bulbs. (c) 3 lone pairs are present in $\mathrm{XeF}_2$. $\left(s p^3 d\right)$ Linear
(a), (b), (c) statements are correct but statements (d) is incorrect. (d) He has lowest boiling point among all the noble gases.

Asked in: AP EAMCET 2018 (22 Apr Shift 1)

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