Understanding Metallic Oxides and Their Basic Nature

What is the purpose of burning the magnesium ribbon in the experiment?

• To measure the temperature of the flame

• To test the flammability of magnesium

• To produce magnesium oxide

• To observe the color change of magnesium

What is the significance of the white powder formed after burning magnesium?

• It shows that magnesium is not reactive

• It is a sign of incomplete combustion

• It indicates the presence of impurities

• It is magnesium oxide, a product of the reaction

What happens to the red litmus paper when it is dipped in the solution formed by dissolving magnesium oxide in water?

• It remains red

• It dissolves in the solution

• It turns green

• It turns blue

What compound is formed when magnesium oxide is dissolved in water?

• Magnesium chloride

• Magnesium hydroxide

• Magnesium sulfate

• Magnesium carbonate

Why is it advised not to stare at the burning magnesium?

• It can cause temporary blindness

• It produces harmful gases

• It can cause skin burns

• It emits a loud noise