Which of the following is an example of free radical?
Correct answer: C. Br
- A. Br+
- B. Br-
- C. Br
- D. Cl2
Explanation
Br is a free radical. Bromine atoms have single unpaired electrons, then we call them bromine free radicals - or more usually just bromine radicals. Free radicals are formed if a bond splits evenly - each atom getting one of the two electrons. Br: This is a neutral bromine atom. A neutral bromine atom has seven electrons in its outer shell, which is one electron short of a full octet. This means that the bromine atom has one unpaired electron, making it a free radical.
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About Alkyl Halides
Alkyl halides are named and related to their carbon-halogen structure, polarity and reactivity. The key reactions are nucleophilic substitution by SN1 and SN2 mechanisms and elimination by E1 and E2 mechanisms, including how substrate structure, nucleophile, base, solvent and temperature influence substitution versus elimination.
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