JEE Main 2017 Chemistry question
Which of the following reactions is an example of a redox reaction?
Answer: (4)
Solution
A redox reaction requires a change in oxidation number. Check each. **(1)** Xenon is in and remains in ; phosphorus stays — this is a simple fluoride-ion transfer (Lewis acid–base), not redox. **(2)** Xenon is in and in
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