Q. Among $CaH_2$, $BeH_2$, $BaH_2$, the order of ionic character is
A) $BeH_2 < BaH_2 < CaH_2$
B) $CaH_2 < BeH_2 < BaH_2$
C) $BeH_2 < CaH_2 < BaH_2$
D) $BaH_2 < BeH_2 < CaH_2$
Explanation
[Solution] Ionic character increases down the group as metal size increases: $BeH_2 < CaH_2 < BaH_2$. Answer (3).
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.