The ore zinc blende, is an important source of the metal zinc. What is the name of the zinc compound in zinc blende ?

Question

(i) The ore zinc blende, is an important source of the metal zinc. What is the name of the zinc compound in zinc blende ?

 (ii) Which is the zinc compound obtained by roasting zinc blende ? 

(iii) What is the type of chemical reaction carried out after roasting in order to obtain zinc ?

(iv) Are liquid zinc and liquid lead miscible or immiscible ? 

(v) What is the name of the alloy formed between zinc and copper ?

Answer 1

(i) Zinc sulphide [ZnS]. 

(ii) Zinc blende is oxidised to zinc oxide by roasting in presence of excess air on reverberatory furance. 

(iii) Reduction of zinc oxide. 

(iv) Immiscible. 

(v) Brass