1. (i) The ore zinc blende, is an important source of the metal zinc. What is the name of the zinc compound in zinc blende?   2. (ii) What is the zinc compound obtained by roasting zinc blende?   3. (iii) What is the type of chemical reaction carried out after roasting in order to obtain zinc?   4. (iv) Are liquid zinc and liquid lead miscible or immiscible?   5. (v) What is the name of the alloy formed by zinc and copper?