KVPY SA Exam 2011 Question Paper

Question : 40 of 80

Marks: +1, -0

In the conversion o f a zinc ore to zinc metal, the process of roasting involves

Solution:

\table ,2\ZnS+3\O_2, {–––––––– ▶}↖{950°\C},2\ZnO+2\SO_2; ,\ZnS+2\O_2 ,{–––––––– ▶}↖{950°\C}, \ZnSO_4 ;\then ,2\ZnSO_4,{–––––––– ▶}↖{950°\C},2\ZnO+2\SO_2+\O_2

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