Question
Question: The order of reactivity of various alkyl halides towards nucleophilic substitution follows the order...
The order of reactivity of various alkyl halides towards nucleophilic substitution follows the order.
A
R−I>R−Br>R−Cl>R−F
B
R−F>R−Cl>R−Br>R−I
C
R−Cl>R_Br>R−I>R−F
D
R−Br>R−I>R−Cl>R−F
Answer
R−I>R−Br>R−Cl>R−F
Explanation
Solution
The alkyl halides are very reactivity due to highly polarized C-X bond with a large difference in electro negativities of carbon and halogen atoms. The order of reactivity is
Iodides > bromides > chlorides > fluorides