Question
$$Xe{F_6}$$ dissolves in anhydrous $$HF$$ to give a good conducting solution which contains :
A.
$${H^ + }\,{\text{and}}\,\,XeF_7^ - \,ion$$
B.
$$HF_2^ - \,{\text{and}}\,\,XeF_5^ + \,ions$$
C.
$$HXeF_6^ + \,{\text{and}}\,\,{F^ - }\,ions$$
D.
$${\text{none of these}}$$
Answer :
$$HF_2^ - \,{\text{and}}\,\,XeF_5^ + \,ions$$
Solution :
$$HF + Xe{F_6} \to XeF_5^ + + HF_2^ - $$