1. Name any two ores of iron.
2. Write any two ores of copper.
3. Name the chief ores of aluminium.
Answer (1)
The subject of this question is Chemistry, and it is typically asked at the High School level.
Two ores of iron are: a. Hematite ( Fe 2 O 3 ) - This is the most important ore of iron. It is a reddish-brown to black mineral, and it consists mainly of iron(III) oxide. Hematite is extracted by open pit mining or underground mining. It is used as a primary source of iron in the production of steel.
b. Magnetite ( Fe 3 O 4 ) - This ore is magnetic, which is why it is named magnetite. It is a black or brownish-black mineral. Magnetite is an important iron ore and is used in the production of steel and iron products.
Two ores of copper are: a. Chalcopyrite ( CuFeS 2 ) - This is the most common copper ore. It has a brass-yellow color and is the primary source of copper in the world. Chalcopyrite is extracted through mining, and it is processed to obtain pure copper.
b. Malachite ( Cu 2 CO 3 ( OH ) 2 ) - This green mineral is a copper carbonate hydroxide. Malachite was one of the first ores used to produce copper metal in ancient times due to its attractive green color and relative ease of smelting.
The chief ores of aluminum: The chief ore of aluminum is Bauxite.
Bauxite is mainly composed of aluminum hydroxides, such as gibbsite ( Al(OH) 3 ), boehmite ( AlO(OH) ), and diaspore ( AlO(OH) ). It is found in various countries with tropical and subtropical climates. Bauxite is extracted via open-pit mining and is the main source of the metal aluminum. The extraction process known as the Bayer process is used to refine bauxite to produce alumina (aluminum oxide), which is then turned into aluminum through the Hall-Héroult process.
