Question

In which industry is Bauxite mainly used?
A. In textile industry
B. In aircraft industry
C. In handloom industry
D. None of these

Answer 1

Hint: Bauxite is the raw product product that is the ore from which aluminium is extracted. It is estimated that up to 80% of the materials used in the modern day aircraft is aluminium.

Complete answer: Option A: Textile industries are mainly industries for producing garments or materials that are needed for domestic purposes. Bauxite is a metal that is mainly used for heavy engineering industries, thus bauxite cannot be used in textile industries, that makes option A an incorrect answer.
Option B: Aluminium, obtained from the Bauxite Ore, is perfect metal to use in the manufacturing of airplanes. The properties of aluminium like that of strength, lightweightness, predictability and inexpensiveness makes it the best material to be used in the aircraft manufacturing industry. Though steel and iron are very much strong as metals to be used for aircraft manufacturing, it is their heavy weight that pose the problem.
Bauxite is a sedimentary rock with quite a high aluminium content. Bauxite is the world’s main source of aluminium. The ore must be chemically processed at first to produce alumina (aluminum oxide). Alumina is then smelted using an electrolysis process to produce pure aluminium metal. Bauxite is mainly used for aluminium production (the metallurgical bauxites) and for the production of refractory materials, chemicals and cements (the non-metallurgical bauxites).
Therefore, as the refined product of bauxite is aluminium which is widely used for aircraft manufacturing purposes, the correct answer is option B, that says bauxite is used in aircraft manufacturing industry.
Option C: Handloom industry is also an industry that manufactures mainly garments. These are small scale industries. Small equipment are required by these industries to function.

Thus, option C, suggesting handloom industry is not the correct option.

Note: In India, Odisha accounts for about 51% of the country's bauxite resources. The extraction of alumina from bauxite produces a highly toxic residue, termed as bauxite refinery residue (BRR) or red mud.