JEE Advanced Model Paper 9 with solutions for online practice

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Question : 4 of 57
 
Marks: +1, -0
Xenon trioxide (XeO3) forms xenate ion in alkaline medium.
XeO3 + NaOH → Na[HXeO4]
But the xenate ions slowly disproportionate in alkaline solution as
Na[HXeO4] + NaOH → Z + Xe + O2 + H2O
The compound Z is expected to be
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