MHT CET · Chemistry · General Principles and Processes of Isolation of Metals

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

A Diaspore
B Bauxite
C Dolomite
D Galena

Verified Solution

Answer & Solution

Correct Answer

(D) Galena

Step-by-step Solution

Detailed explanation

Galena
Galena is also known as the lead glance. It is present in the form of Lead (II) sulphide, PbS.
As the galena ore contains sulphide group, therefore galena is best concentrated by the froth flotation method. Galena is the correct answer.

Apply the relevant identity from the chapter and substitute the values established in the previous step, keeping the original constraint in view.

Use the simplified expression to isolate the unknown, then plug the result back into the question setup to confirm the working is internally consistent.

Cross-check against a boundary or limiting case. Both the dimensional balance and the qualitative behaviour at the extreme should agree with the candidate answer.

Combine the steps above to identify the correct option. The remaining choices each fail at least one of the consistency, dimensional, or boundary checks.

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