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Get Answers to all your Questions
What will be the correct order of -I effect for the following elements?
F, Cl, Br, I
Answers (1)
Correct Order of –I Effect: F>Cl>Br>I
Explanation:
-
The –I effect refers to the electron-withdrawing inductive effect due to electronegativity.
-
More electronegative atoms pull electrons more strongly through sigma bonds.
-
Among halogens:
| Halogen | Electronegativity | –I Effect |
|---|---|---|
| F | 3.98 | Strongest |
| Cl | 3.16 | ↓ |
| Br | 2.96 | ↓ |
| I | 2.66 | Weakest |
So, as electronegativity decreases, the –I effect also decreases.
Therefore, the correct order of the –I effect is, F>Cl>Br>I.
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