Which metal oxide dissolves in water to form | vedclass

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(A) Metal oxides are generally basic in nature. Most metal oxides are insoluble in water,but some dissolve in water to form alkalis.Among the given op

Vedclass · Accepted Answer

$Na_{2}O$

Vedclass · Answer

(A) Metal oxides are generally basic in nature. Most metal oxides are insoluble in water,but some dissolve in water to form alkalis.Among the given options,$Na_{2}O$ (Sodium oxide) is a highly reactive metal oxide that reacts with water to form a strong alkali,Sodium hydroxide $(NaOH)$.The reaction is: $Na_{2}O(s) + H_{2}O(l) \rightarrow 2NaOH(aq)$.$Al_{2}O_{3}$ and $ZnO$ are amphoteric oxides,and $Fe_{2}O_{3}$ is insoluble in water.

Which metal oxide dissolves in water to form an alkali?

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