Metal Oxides and Their Reactions

Front

Metal oxides can accept protons and neutralize acids.

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Metal oxides behave as bases by accepting hydrogen ions (H⁺).

Front

Calcium oxide neutralizes acidic soil.

Back

Calcium oxide, or lime, is used in agriculture to neutralize acidic soil, preventing toxic ion absorption by plants.

Front

Magnesium hydroxide as an antacid.

Back

Magnesium hydroxide neutralizes hydrochloric acid in the stomach, relieving indigestion and heartburn.

Front

Amphoteric oxides react with acids and bases.

Back

Amphoteric oxides, like aluminum oxide, can react with both acids and bases to form salts and aluminates.

Front

Alumina extraction process.

Back

Alumina is extracted from bauxite using the Bayer process, involving crushing, reacting with NaOH, filtering, crystallizing, and heating.

Front

Calcium hydroxide neutralizes acidic effluent.

Back

Calcium hydroxide is used to neutralize acidic waste in the chemical industry, such as sulfuric acid solutions.

Front

Aluminum oxide reacts with HCl.

Back

Aluminum oxide reacts with hydrochloric acid to form aluminum chloride and water.

Front

Role of alumina in the Hall-Héroult process.

Back

Most alumina is used in the Hall-Héroult process to produce aluminum by electrolysis.

Front

Refractory materials.

Back

Some alumina is used as refractory material, which retains strength and stability at high temperatures.

Front

Reaction of aluminum oxide with NaOH.

Back

Aluminum oxide reacts with sodium hydroxide to form sodium aluminate and water.