Q. Which halogens oxidises water to oxygen exothermally?
A) Fluorine
B) Chlorine
C) Bromine
D) Iodine
Explanation
(a)
Fluorine reacts with water liberating $O_{2}$ exothermally
$2F_{2} + 2H_{2}O \rightarrow 4HF + O_{2}$
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.