Question

12.) Explain why Magnesium oxide is
(a) soluble in water but not in alcohol.
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Answer 1

Answer:

Magnesium oxide is by no means soluble in water. MgO is an ionic compound whose crystal structure is made up of Mg²⁺ cations and O²¯ anions. The thing is, such ions are so tightly held together that water by itself cannot overcome like it does with other crystalline compounds such as salts.