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Question

For the following question there is an "assertion" and a "Reason".

Assertion: XeO3 explosively decomposes into Xenon and Oxygen above room temperature.
Reason: It is a powerful oxidizing agent

Which one of the following options is most accurate?

A
Both the assertion and the reason are correct and the reason correctly explains the Assertion.
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B
Both the assertion and the reason are correct but the reason does not correctly explain the Assertion
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C
The assertion is correct and the reason is wrong.
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D
Both the assertion and the reason are wrong.
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Solution

The correct option is B Both the assertion and the reason are correct but the reason does not correctly explain the Assertion
The assertion is in fact, a very accurate statement.
2XeO3(s)2Xe(g)+3O2(g)
Just releasing oxygen does not an “oxidizing agent” make. That is just a cryptic way of saying – releasing oxygen is not the only criterion for an oxidizing agent. This explosive reaction could serious cause harm if XeO3 is not handled with enough care. The Xenon (VI) oxide is a very strong oxidizing agent under suitable conditions. For instance, XeO3 dissolves in alkaline solutions to form xenates HXeO4, which disproportionate as

2HXeO4(aq)+2OHXeO46(aq)+O2(g)+2H2O(l)

The ion perxenate is among one of the strongest oxidizing agents known. It has the central Xenon atom surrounded by 6 Oxygen atoms in an octahedral arrangement. The Xe atom in XeO46 has a formal oxidation state of +8.
Treating Barium perxenate with concentrated H2SO4 produces XeO4. Xenon tetraoxide has the following shape:




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