The correct order of reactivity of the hydrogen halides with alkenes is

Question

The correct order of reactivity of the hydrogen halides with alkenes is (A) HI > HBr > HCl (B) HCl > HBr > HI (C) HI > HCl > HBr (D) HBr > HCl > HI

Tardigrade Admin · Accepted Answer

As the size of halogen atom increases, H -X bond length increases, thus reactivity increases. Hence, the order of reactivity of hydrogen halides towards alkenes is HI > HBr > HCl.

Q. The correct order of reactivity of the hydrogen halides with alkenes is

$H I > H B r > H Cl$

$H Cl > H B r > H I$

$H I > H Cl > H B r$

$H B r > H Cl > H I$

As the size of halogen atom increases, $H - X$ bond length increases, thus reactivity increases. Hence, the order of reactivity of hydrogen halides towards alkenes is $H I > H B r > H Cl$ .

Q. The correct order of reactivity of the hydrogen halides with alkenes is

HI>HBr>HCl

HCl>HBr>HI

HI>HCl>HBr

HBr>HCl>HI

As the size of halogen atom increases, H−X bond length increases, thus reactivity increases. Hence, the order of reactivity of hydrogen halides towards alkenes is HI>HBr>HCl.

$H I > H B r > H Cl$

$H Cl > H B r > H I$

$H I > H Cl > H B r$

$H B r > H Cl > H I$

As the size of halogen atom increases, $H - X$ bond length increases, thus reactivity increases. Hence, the order of reactivity of hydrogen halides towards alkenes is $H I > H B r > H Cl$ .