Free radicals are chemical species which have______________?
Correct answer: C. Single unpaired electron in an outer orbit
- A. Double unpaired electron in an outer orbit
- B. Single paired electron in an outer orbit
- C. Single unpaired electron in an outer orbit
- D. Double paired electron in an outer orbit
Explanation
A free radical contains at least one unpaired electron, commonly in its outer orbital, making it highly reactive. Paired electrons are relatively stable and do not define a free radical.
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