Which of the following ores is best concentra | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(A) The correct answer is $(A)$.Froth-flotation is a process specifically used for the concentration of sulphide ores.Galena $(PbS)$ is a sulphide ore

Vedclass · Accepted Answer

Galena

Vedclass · Answer

(A) The correct answer is $(A)$.Froth-flotation is a process specifically used for the concentration of sulphide ores.Galena $(PbS)$ is a sulphide ore.Cassiterite $(SnO_2)$ is an oxide ore.Magnetite $(Fe_3O_4)$ is an oxide ore.Malachite $(Cu(OH)_2 \cdot CuCO_3)$ is a carbonate ore.Therefore,only Galena is concentrated by the froth-flotation method,which relies on the preferential wetting of sulphide particles by oil (frothing agent) and gangue particles by water.

$I$ (Method)	$II$ (Ore)
$(I)$ Magnetic separation	$a. Cu_2S$
$(II)$ Froth flotation	$b. FeCr_2O_4$
$(III)$ Gravity separation	$c. Al_2(SiO_3)_3$

Which of the following ores is best concentrated by the froth-flotation method?

Similar Questions

The substance added to the ore to remove impurities is known as........

Difference in density is the basis of

Which one of the following is true?

For the purification of alumina,the modern processes most useful when $(i)$ the impurity present is a lot of iron oxides and $(ii)$ the impurity present is a lot of silica,are:

Match the method of concentration of ore in Column $I$ with the ore in Column $II$.

$I$ (Method) $II$ (Ore)

$(I)$ Magnetic separation $a. Cu_2S$

$(II)$ Froth flotation $b. FeCr_2O_4$

$(III)$ Gravity separation $c. Al_2(SiO_3)_3$

Vedclass Test Series

Exam Paper Generator

Online Exam Module