ABauxite
BCalamine
CHaematite
DMagnetite
Answer:
A. Bauxite
Read Explanation:
Bauxite is indeed the primary ore of aluminum. It is a type of sedimentary rock that is rich in aluminum hydroxide (Al2O3·2H2O), which is the main source of aluminum.
Characteristics of Bauxite:
Composition: Aluminum hydroxide, iron oxide, silicon dioxide, and titanium dioxide
Appearance: Red or brown in color, with a earthy or clay-like texture
Deposits: Found in tropical and subtropical regions, often in association with limestone and shale
Extraction of Aluminum from Bauxite:
The extraction of aluminum from bauxite involves several steps:
Mining: Bauxite is mined from open-pit or underground deposits.
Refining: The bauxite is refined to produce alumina (Al2O3), which is then smelted to produce pure aluminum.
Importance of Bauxite:
Bauxite is the primary source of aluminum, which is used in a wide range of applications, including:
Aircraft and aerospace: Aluminum is used in the manufacture of aircraft and spacecraft due to its high strength-to-weight ratio.
Automotive: Aluminum is used in the manufacture of vehicle parts, such as engine blocks and cylinder heads.
Packaging: Aluminum is used in the manufacture of cans and foil for food and beverage packaging.
Construction: Aluminum is used in the manufacture of building materials, such as window frames and roofing.