Which of the following ore is concentrated by the froth floatation process?

Which of the following ore is best concentrated by froth floating process? Magnetite, galena, Malachite, Cassiterite

Which of the following ores are concentrated by froth floation ?

Which one of the following ore is best concentrated by froth floatation method?

Sulphide ores are concentrated by froth floatation process.

Which of the following are concentration cell?

Which of the following is used as a depressant in froth floatation process ?

The chief ore of Zn is the sulphide ZnS. The ore is concentrated by froth floatation process and then heated in air to convert ZnS to ZnO . 2ZnS+3O_3 80% rarr 2ZnO+2SO. ZnO+H_2SO_4 100% rarr Zn SO_4+H_2O and 2ZnSO_4+2H_2O 80% rarr 2Zn+2Hn+2H_2SO_4+O_2 . The number of moles of ZnS required for producing 2 moles of Zn will be :

What is froth floatation process ? Name the ores which are concentrated by froth floatation process . What is meant by a depressant ?

Which of the following is the ore of zinc?