Bauxite is the chief ore of:a)Ironb)Zincc)Copperd)AluminiumCorrect answer is option 'D'. Can you explain this answer?

Question

Answer

Aluminum....(it's given in Metallurgy chapter)...

Answer

The correct answer is option D
Aluminium
Bauxite is the most important ore of aluminium which contains only 30–54% alumina, Al₂O₃; the rest is a mixture of silica, various iron oxides, and titanium dioxide along with trace amounts of zinc, phosphorus, nickel, vanadium etc.

Answer

Bauxite ore is world's primary source of aluminum...
The ore must first be chemically processed to produce alumina and then smelted using an electrolysis process to produce aluminum....

Answer

Introduction:
Bauxite is a sedimentary rock that is the chief ore of aluminum. It is found in various countries around the world and is typically extracted through open-pit mining.

Explaining the correct answer:
The correct answer is option 'D', which states that bauxite is the chief ore of aluminum. Here's why:

1. Definition of bauxite:
Bauxite is a reddish-brown rock that consists mainly of aluminum oxide (Al2O3), along with various impurities such as silica, iron oxide, and titanium dioxide. It is formed through the weathering of aluminum-rich rocks and is typically found in tropical or subtropical regions.

2. Aluminum extraction:
Aluminum is the third most abundant element in the Earth's crust, but it is never found in its pure form. Instead, it occurs as compounds, primarily bauxite. Bauxite is the primary source of aluminum because it contains a high percentage of aluminum oxide.

3. Aluminum production process:
The extraction of aluminum from bauxite involves several steps. First, the bauxite ore is mined and then refined to remove impurities. This process is known as the Bayer process. The refined bauxite is then subjected to the Hall-Héroult process, which uses electrolysis to separate the aluminum from the other elements present in the ore.

4. Other options:
The other options listed in the question (a) iron, (b) zinc, and (c) copper are incorrect. While these metals are important in their own right, they are not derived from bauxite. Iron, for example, is primarily obtained from hematite or magnetite ores, while zinc is typically extracted from sphalerite and copper from chalcopyrite or bornite ores.

Conclusion:
In conclusion, bauxite is the chief ore of aluminum. It is a sedimentary rock that contains a high percentage of aluminum oxide and is extracted through open-pit mining. Aluminum, in turn, is a versatile metal that has numerous applications in various industries.

Answer

Bauxite does not have a specific composition. It is a mixture of hydrousaluminum oxides, aluminum hydroxides, clay minerals, andinsoluble materials such as quartz, hematite, magnetite, siderite, andgoethite.Bauxite is the primary ore of aluminum. Almost all of the aluminum that has ever been produced has been extracted from bauxite

Answer

Beacuse its composition chiefly contains Al

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