Q. Which one of the following process requiring absorption of energy?
A) $Cl\ \rightarrow Cl^{-}$
B) $H\ \rightarrow H^{-}$
C) $O\ \rightarrow O^{2 -}$
D) $F\ \rightarrow F^{-}$
Explanation
(c)
Second electron affinity of oxygen is endothermic and greater than first electron affinity, which is exothermic
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.