Give the reaction involved during the extraction of zinc from its ore by
(a) roasting of zinc ore
(b) calcination of zinc ore

AcademicChemistryNCERTClass 10

(a) Roasting of zinc ore
Roasting is a process of metallurgy where ore is converted into its oxide by heating it below its melting point in the presence of excess air.
$2ZnS + 3O_2→2ZnO + 2SO_2$

(b) Calcination of zinc ore
Calcination is defined as the process of converting ore into an oxide by heating it strongly in the absence of air.
Updated on 10-Oct-2022 13:27:26