The Sblock Elements Ques 19

19. Which of the following oxides is most acidic in nature?

[2018]

(a) $MgO$

(b) $BeO$

(c) $CaO$

(d) $BaO$

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Answer:

Correct Answer: 19.(b)

Solution:

(b) In metals, moving down the group, metallic character increases, so basic nature increases hence most acidic will be $BeO$.

$\xrightarrow[\text{ increasing basic character }]{BeO<MgO<CaO<BaO}$