Correct statements about forth floatation process used in metallurgy
(A) It is based on the difference in wettability of different
minerals
(B) Sodium ethyl xanthate is used as collector
(C) NaCN is used as a depressant in the mixture of ZnS and
PbS when ZnS forms soluble complex
(D) This method is generally employed to dress the sulphide
ores
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Answer:
6
Explanation:
Compare nucleophilic substation reaction and electrophilic
substation reaction.
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