Uses of Group 2 Elements (AQA A-Level Chemistry): Flashcards

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Uses of Group 2 Elements
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Role of Mg in Ti extraction

Reduces TiCl4TiCl₄ to produce pure Ti

Temp. for Mg reduction of TiCl4TiCl₄

Nearly 1000°C

Common name for Mg(OH)2Mg(OH)₂

Milk of magnesia

Use of Mg(OH)2Mg(OH)₂ as antacid

Neutralises stomach acid

Common name for Ca(OH)2Ca(OH)₂

Slaked lime

Use of Ca(OH)2Ca(OH)₂ in agriculture

Neutralises acidic soil, improves pH for crops

Use of CaOCaO/CaCO3CaCO₃ in industry

Remove SO2SO₂ from flue gases, prevents acid rain

Use of BaSO4BaSO₄ in medicine

Barium meals for X-ray imaging of digestive tract

Why is BaSO4BaSO₄ safe despite toxic Ba2+Ba²⁺?

Highly insoluble, not absorbed into bloodstream

Result of sulfate test with acidified BaCl2BaCl₂

White precipitate of BaSO4BaSO₄

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Periodicity

Group 2, the Alkaline Earth Metals

Group 7 (17), the Halogens

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Periodicity

Group 2, the Alkaline Earth Metals

Group 7 (17), the Halogens

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Periodicity

Group 2, the Alkaline Earth Metals

Group 7 (17), the Halogens

Explore AQA A-Level Chemistry Exam Questions by Topics

Periodicity

Group 2, the Alkaline Earth Metals

Group 7 (17), the Halogens

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