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  Inorganic Chemistry

XENON TETRAOXIDE :

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Xenon tetraoxide (XeO4) is prepared by the action of conc. H2SO4 on sodium or barium xenate (Na4XeO6, Ba2XeO6) at room temperature,

Na4XeO6 + 2H2SO4 ——> XeO4 + Na2SO42H2O

Ba2XeO6 + 2H2SO4 ——> XeO4 + 2BaSO4 + 2H2O

XeO4 is purified by vacuum sublimation at 195 K.

Structure : XeO4 has tetrahedral structure due to sp3 hybridization of Xe. There are four Xe–O double bonds containing pπ–dπ overlapping.

Properties : It is quite unstable gas and decomposes to xenon and oxygen, XeO4 —> Xe + 2O2.

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