Pblock Elementsii Result Question 6
6. Which of the following reactions is an example of a redox reaction?
(2017 Main)
(a) $\mathrm{XeF}_4+\mathrm{O}_2 \mathrm{~F}_2 \longrightarrow \mathrm{XeF}_6+\mathrm{O}_2$
(b) $\mathrm{XeF}_2+\mathrm{PF}_5 \longrightarrow[\mathrm{XeF}]^{+} \mathrm{PF}_6^{-}$
(c) $\mathrm{XeF}_6+\mathrm{H}_2 \mathrm{O} \longrightarrow \mathrm{XeOF}_4+2 \mathrm{HF}$
(d) $\mathrm{XeF}_6+2 \mathrm{H}_2 \mathrm{O} \longrightarrow \mathrm{XeO}_2 \mathrm{~F}_2+4 \mathrm{HF}$
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Answer:
Correct Answer: 6. ( a )
Solution:
The reaction in which oxidation and reduction occur simultaneously are termed as redox reaction.
$\stackrel{+4}{\mathrm{XeF}_4}+\stackrel{+1}{\mathrm{O}}\left(\mathrm{F}_2\right) \longrightarrow \stackrel{+6}{\mathrm{X}} \mathrm{eF}_6+\stackrel{0}{\mathrm{O}}{ }_2$
Since, $Xe$ undergoes oxidation while $O$ undergoes reduction. So, it is an example of redox reaction.
BETA
