Explain the extraction of zinc from zinc oxide or from zinc blende (ZnS).

Name the reducing agent used in the extraction of zinc from zinc oxide. Write the chemical equation for this reaction.

Extraction of zinc from zinc blende is achieved by :

Give the reaction involved during the extraction of zinc from its ore by a. Roasting of zinc or b. Calcination of zinc ore OR How are roasting and calcination used in the extraction of zinc? Explain with the help of chemical equations. After these processes is reduction necessary to obtain zinc? Why

Name any two ores of zinc. How is zinc extracted from zinc oxide?

Mention the difference between calcination and roasting. How these processes are used in the extraction of zinc? Explain with the help of chemical equations. After these processes, is reduction necessary to obtain zinc ? Why ?