Question

Give reason for why an alkali and not an acid is used for concentration of bauxite in the metallurgy of aluminium?

Answer 1

Answer:

hey,

Explanation:

Bauxite(Al2.O3)

acis is not used because Al in bauxite will react with the acid

So it is not preffered

Answer 2

Alkali is used and acid is not used in the concentration of bauxite in the metallurgy of aluminium because bauxite reacts with acids to form salt and water.

• Bauxite is the common name for the ore form of Al₂O₃.
• Concentration is the process of separating the ores from the impurities leading to the increase in the proportion of the ore.
• Aluminium oxide is basic in nature hence, it will react if an acid is used in place of alkali in the concentration process.