Metal sulphides occur mainly in rocks and metal halides occur in lakes and seas. Give reason.
Channel: Doubtnut
Date: 2020-07-26

Metal sulphides occur mainly in rocks and metal halides occur in lakes and seas. Give reason.  (b) Pine oil is used in froth flatation process. Why ?  ( c) What is a depresent ? Give an example.  (d) What is the role of stabiliser in froth flotation process ?  ( e) What is gangue ?