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| 1. |
In froth floatation process many chemicals (frother, collector, activator and depressant) are used. Which is called a frother ? (a) Pine oil (b) CuSO4 (c) Potassium xanthate (d) NaCN + alkali |
| Answer» <p class="MsoNormal"><span lang="EN-US" style="font-family:Arial,sans-serif; font-size:10pt"></span></p><p style="text-align: justify;"><span style="color:#000000"><span style="font-family:Arial,Helvetica,sans-serif"><strong>Correct option (a) Pine oil</strong></span></span></p><p style="text-align: justify;"><span style="color:#000000"><span style="font-family:Arial,Helvetica,sans-serif"><strong>Explanation:</strong></span></span></p><p style="text-align: justify;"><span style="color:#000000"><span style="font-family:Arial,Helvetica,sans-serif">Froth is a colloidal system of a gas in liquid. It has very good adsorption capacity, frothers generate a stable froth which rises to the top of the tank. The best example of frother is pine oil.</span></span></p> | |