Q. Correct order of reactivity
A) I_{2}>Br_{2}>Cl_{2}>F_{2}
B) Br_{2}>I_{2}>Cl_{2}>F_{2}
C) Cl_{2}>Br_{2}>I_{2}>F_{2}
D) F_{2}>Cl_{2}>Br_{2}>I_{2}
Explanation
(d)
Halogens are very reactive due to high electronegativity, high electron affinity and comparatively low bond energies. The reactivity of halogen decreases with increase in atomic number. The correct order of reactivity of halogens is
F_{2}>Cl_{2}>Br_{2}>I_{2}
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.