Question

Which of the following is the most suitable ore to undergo electrochemical process?

(a) Kaolinite

(b) Calamine

(c) Bauxite

(d) Cinnabar

This question was addressed to me by my school principal while I was bunking the class.

This is a very interesting question from Electrochemical Principles of Metallurgy topic in section General Principles and Processes of Isolation of Elements of Chemistry – Class 12

Answer 1

Right answer is (c) Bauxite

To explain I would say: Bauxite is an ore of aluminium and most suitable ore to undergo electrochemical process. Aluminium is a high electro positive metal and can be extracted from concentrated bauxite by electrolysis and the process is knows as Hall-Heroult process.