$Xe{{F}_{6}}\,\xrightarrow{+\,Excess\,\,{{H}_{2}}O}\,'X'\,+\,HF$
$Xe{{F}_{6}}\,\xrightarrow{+\,2\,\,{{H}_{2}}O}\,'Y'\,+\,HF$
$Xe{{F}_{6}}\,\xrightarrow{+\,2\,\,{{H}_{2}}O}\,\underset{(Y)}{\mathop{Xe{{O}_{2}}{{F}_{2}}\,}}\,+\,HF$
$Y$ is not an oxyacid of xenon.
$(I)$ $TeF_6$ $(II)$ $SF_6$ $(III)$ $NCl_3$ $(IV)$ $NF_3$
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