Which of the following reactions is an example of a redox reaction ?
XeF6 + H2O → XeOF4 + 2HF
XeF6 + 2H2O → XeO2F2 + 4HF
XeF4 + O2F2 → XeF6 + O2
XeF2 + PF5 → [XeF]+ PF6−
As we learnt in
Redox Reaction -
Redox reaction as a class of reactions in which oxidation and reduction reactions occur simultaneously.
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In the given reactions:
The oxidation states are:
There is no change in the oxidation states of any of the reactor
The above is not a redox reaction
Similarly,
(+2) (-1) (+5) (-1) -------> (+2) (-1) (+5) (-1)
Above is not a redox reaction
Now,
+4 -1 +1 -1 +6 -1 0
Clearly the oxidation state of changed from +4 to +E and that of oxygen changed from (+1) to 0
This is an example of a redox reaction.
Option 1)
XeF6 + H2O → XeOF4 + 2HF
This is incorrect option
Option 2)
XeF6 + 2H2O → XeO2F2 + 4HF
This is incorrect option
Option 3)
XeF4 + O2F2 → XeF6 + O2
This is correct option
Option 4)
XeF2 + PF5 → [XeF]+ PF6−
This is incorrect option
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