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The reactivity order of haloalkanes is R...

The reactivity order of haloalkanes is `R-I gt R-Br gt R-Cl gt R-F.` Explain.

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Due to electronegativity difference the reactivity order of haloalkane is as follows:
` R -F gt R -Cl gt R - Br gt R -I`
But actual order of reactivity of haloalkane is given as follows:
`R-I gt R - Br gt R - Cl gt R -F `
It is because of lesser bond dissociation energy of R-I. Therefore, R-l.bond can be easily cleaved. Whereas R-F bond is the strongest bond. This bond requires more energy for cleavage. Hence, this explains the reactivity order of haloalkanes.
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OMEGA PUBLICATION-HALOALKANES AND HALOARENES-MULTIPLE CHOICE QUESTIONS (MCQS)
  1. The reactivity order of haloalkanes is R-I gt R-Br gt R-Cl gt R-F. Ex...

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  2. Ethyl alcohol gives ethyl chloride with the help of

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  3. CH3 -CH =CH2 +HI to X where X is

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  4. The reaction CH3 -CH =CH2 +HBr to CH3 - underset(Br) underse...

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  5. SN^1 reaction of alkylhalides leads to

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  6. Most reactive metal is:

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  7. The reactivity order of halides for dehydrohalogenation is

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  8. Mg reacts with RBr best in

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  9. Both methane and ethane can be prepared in single step by the use of

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  10. Alkyl halides react with Mg in dry ether to form

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  11. Which of the following metal can be used for carrying out Wurtz-Fittig...

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  12. Ethyl alcohol gives ethyl chloride with the help of

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  13. CH3 -CH =CH2 +HI to X where X is

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  14. The reaction CH3 -CH =CH2 +HBr to CH3 - underset(Br) underse...

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  15. SN^1 reaction of alkylhalides leads to

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  16. Most reactive halide towards SNI reaction is

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  17. The reactivity order of halides for dehydrohalogenation is

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  18. Mg reacts with RBr best in

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  19. Both methane and ethane can be prepared in single step by the use of

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  20. Alkyl halides react with Mg in dry ether to form

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  21. Which of the following metal can be used for carrying out Wurtz-Fittig...

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