Question

Here an extraction process is given in steps. Identify the suitable ores corresponding to the process:
pulverization $\to$ calcination $\to$ smelting $\to$ vacuum $\to$ distillation

• A. Zinc blend
• B. calamine
• C. magnesite
• D. zincite

Answer 1

Answer: (A), (D)

The correct options are
A Zinc blend
D zincite

Distillation is used for low boiling metals like zinc. Calcination oxidises to oxide and then smelting reduces it to zinc. By creating vacuum we remove all the gases.