In the Froth Floatation process, zinc sulphide and lead sulphide can be
separated by ______________.
(i) using collectors.
(ii) adjusting the proportion of oil to water.
(iii) using depressant.
(iv) using froth stabilisers.
NCERT Class XII
Chemistry - Exemplar Problems
Chapter 6. General Principles and Processes of Isolation of Elements
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(ii) adjusting the proportion of oil to water.
(iii) using depressant.
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The answer is: (ii)Adjusting the proportion of oil to water.
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