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Ethyl alcohol reacts at a faster rate with HI than with HCl in forming the corresponding ethyl halides under identical conditions mainly because -
Option: 1
HI, being a stronger acid, protonates ethyl alcohol at oxygen much better and helps substitution

Option: 2
the bond length in HI is much shorter than that in HCl

Option: 3
I^- is a much better leaving group

Option: 4
I^- is a much better nucleophile than Cl^-

Answers (1)

best_answer

Order of reactivity of halogen acids -

$HI>HBr>HCl$

- wherein

$ROR'+HX\rightarrow ROH+R'X$

I^- is a much better nucleophile than Cl^-.

Therefore, Option(4) is correct.

Posted by

SANGALDEEP SINGH

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