The correct order of reactivity of alkyl halides is.
Correct answer: C. R-I > R-Br > R-Cl > R-F
- A. R-Br > R-CL > R-F > R-I
- B. R-Br > R-F > R-I > R-CI
- C. R-I > R-Br > R-Cl > R-F
- D. R-Cl > R-I > R-Br > R-F
Explanation
The reactivity of alkyl halides towards nucleophilic substitution reactions follows the order:R-I (alkyl iodide) > R-Br (alkyl bromide) > R-Cl (alkyl chloride) > R-F (alkyl fluoride)This order is based on the strength of the carbon-halogen bond, with the weaker bonds being more reactive. The bond strength decreases from R-F (strongest) to R-I (weakest), making R-I the most reactive and R-F the least reactive
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About Nomenclature, Structure and Reactivity
Alkyl halides are named by selecting the longest carbon chain and locating the halogen substituent, while their structures are classified as primary, secondary or tertiary. Their reactivity includes nucleophilic substitution and elimination, with the behaviour of leaving groups and the distinction between SN1 and SN2 mechanisms linked to substrate structure.
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