Consider the following statements. Which of t | vedclass

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

Question

(D) $(i)$ Froth floatation is specifically used for sulphide ores because sulphide ores are preferentially wetted by oil,while gangue is wetted by wat

Vedclass · Accepted Answer

All are correct

Vedclass · Answer

(D) $(i)$ Froth floatation is specifically used for sulphide ores because sulphide ores are preferentially wetted by oil,while gangue is wetted by water. This is correct.$(ii)$ The principle of froth floatation is indeed the differential wettability of the ore (wetted by oil) and the gangue (wetted by water). This is correct.$(iii)$ Red Bauxite ($Fe_2O_3$ impurity) is concentrated using the Bayer's process,which involves leaching with $NaOH$. This is correct.$(iv)$ In the extraction of zinc from zinc blende $(ZnS)$,the ore is first roasted to $ZnO$. Then,$ZnO$ is reduced using carbon (coke) in a furnace. This is correct.Therefore,all statements are correct.

Similar Questions

$(p \to q) \leftrightarrow (q \vee \sim p)$ is

Which of the following is the correct electronic configuration of $Cr$ $(Z=24)$?

In a metre bridge experiment,the ratio of the left gap resistance to the right gap resistance is $2:3$. The balance point from the left is: (in $~cm$)

In the study of a transistor as an amplifier,if $\alpha = \frac{I_C}{I_E}$ and $\beta = \frac{I_C}{I_B}$,where $I_C, I_B$,and $I_E$ are the collector,base,and emitter currents,respectively,then:

Fascicular,interfascicular and extra-stelar cambium together constitute:

Vedclass Test Series

Exam Paper Generator

Online Exam Module