Question

Explain reactivity of halogen's towards hydrogen.

Answer 1

Answer : Thumbs up for the answer please

Answer 2

Hydrogen Affinity is Strong for Driving Reaction

Explanation:

The reaction of hydrogen and halogens is a redox reaction

$H_2 + X_2 ---> 2 HX$

where $H_2$ loses two electrons and the halogen gains two.  

• This suggests that an important aspect of driving the reaction is the affinity of the halogen in question for electrons.  

• Based on electronegativity, then, fluorine should be the most reactive, then chlorine, bromine, and iodine.  

• This is also aligned with bond energy.  

• The process that yields the strongest bonds should be the most vigorous and is aligned with the observed reactivity.