Question

Which is incorrect statement for $Xe{F}_2$ ?

• A. It has linear structure
• B. It is hydrolysed rapidly in aqueous solution of a base
• C. It oxidizes $C{l}^{-}$ and $I^{-}$ to $C{l}_2$ and $I_2$ respectively
• D. It cannot act as $F^{-}$ donor

Answer 1

Answer: (D)

It acts as a $F^{-}$ donor and forms complexes with covalent fluorides like $P{F}_5,As{F}_5$ and $Sb{F}_5$ .

$Xe{F}_2+P{F}_5\to [XeF{]}^{+}[P{F}_6{]}^{-}$

A. the five electrons pairs form trigonal bipyramid with three lone pairs in equatorial positions. Hence, the structure of $Xe{F}_2$ becomes linear in accordance with VSEPR theory.

B. $2Xe{F}_2+2H_{2}O\to 2Xe+4HF+O_2$

C. $(i)$ $Xe{F}_2+2HCl\to 2HF+Xe+C{l}_2$

$(ii)$ $Xe{F}_2+2KI\to Xe+2KF+I_2$