Question

Give reason- Magnesium oxide dissolved in water changes red litmus blue

Answer 1

Answer:

Magnesium oxide is basic in nature and when it is dissolved in water or brought near moisture, it starts showing up its basic properties because of the ions. And when the solution is tested, it turns red litmus blue as a result of its basic nature.

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Answer 2

Reason:

• Solid Magnesium oxide reacts with water to form solid magnesium hydroxide,Mg(OH)2.
• MgO reacts with H2O to form Mg(OH)2, yhe white solid (of magnesium hydroxide) settles at the bottom of the test tube.
• Supernantant liquid above solid is tedted alkaline, as red litmus paper turns blue!!

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