Q. 15

(i) Name the meth

Answer :

(i) The method of refining to obtain low boiling metal like Hg, Zn, Cd is distillation. On evaporating, pure metal distills over and then collected.

(ii) Role of pine oil in froth floatation is that it acts as froth collector. Froth carries mineral particles to surface while the impurities settle down. The froth is then skimmed off.

(iii) The entropy of a metal is higher in its liquid state than in its solid state. If ΔS is positive, on increasing the temperature (T), the value of TΔS would increase (ΔH < TΔS) and then ΔG will become negative and the reaction becomes feasible.

Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses

Note : In the folChemistry - Exemplar

Match the items oChemistry - Exemplar

Write down the reChemistry - Exemplar

Why aresulphide oChemistry - Exemplar

The purest form oChemistry - Exemplar

At temperatures aChemistry - Exemplar

For the metallurgChemistry - Exemplar

What should be thChemistry - Exemplar