Hindalco Industries General Purchase Engineer Trainee Interview Questions and Answers

Aptitude test was basic and can be solved within an hour.

Group discussion was to check who is more interactive

Q1. What is the process of aluminium extraction?
Ans. 
Aluminium extraction involves the process of electrolysis of alumina (Al2O3) dissolved in molten cryolite.
• Bauxite ore is first mined and purified to obtain alumina (Al2O3).

• Alumina is dissolved in molten cryolite to lower its melting point.

• The mixture is then electrolyzed using carbon electrodes to extract pure aluminium metal.

• The aluminium metal is then processed further to obtain the desired form (ingots, sheets, etc.
Answered by AI
Add your answer
Q2. What is the difference between ore and mineral
Ans. 
Ore is a naturally occurring solid material from which a metal or valuable mineral can be extracted, while mineral is a naturally occurring inorganic solid substance with a specific chemical composition and structure.
• Ore is a type of mineral that contains a high enough concentration of a particular element, such as iron ore containing iron.

• Minerals are naturally occurring substances with a specific chemical composition...read more
Answered by AI
Add your answer