Question

most of the metal oxides are usually insoluble in water but some of them dissolve easily to form a basic solution a) give eg of this metal oxide
b)what is the solution of these metal oxides called

Answer 1

The metals that belong to Group IA and IIA react with water to give hydroxides.Exception here are Magnesium and beryllium , they don't dissolve in water at all.Even calcium and barium oxides are soluble in water.

So an example is CaO that is soluble in water.
When you test the solution using a red litmus paper then the paper turns into blue.This indicates that the solution of metal oxides is basic.

Hope This Helps You!

Answer 2

Heya.....

Here's your answer.......

These oxides are in the form of gas like magnesium oxide.

These oxides are basic in nature and react with water to form hydroxides like magnesium hydroxide.

Thanks...!!!

XD

Sorry baby 'wink'