(A) Mg
(B) Ba
(C) Ca
(D) Sr
Ans. A
Sol. Magnesium has highest ionization energy among these elements. Higher the ionization energy lower the metallic character so, basic character of its oxide is also low.
(A) Mg
(B) Ba
(C) Ca
(D) Sr
Ans. A
Sol. Magnesium has highest ionization energy among these elements. Higher the ionization energy lower the metallic character so, basic character of its oxide is also low.