Advertisements
Advertisements
Question
Distinguish between:
Froth floatation - Leaching
Advertisements
Solution
| Froth floatation | Leaching | |
| 1. | The froth floatation method is based on the two opposite properties, hydrophilic and hydrophobic, of the gangue and ore particles respectively. | Leaching method is based on the dissolution of ore particles in a certain solution. |
| 2. | There is no chemical reaction involved. | There is a specific chemical reaction between ore and the solution used for leaching. |
| 3. | This method involves the formation of froth from oil, water, and air bubbles together, due to the agitation. | There is no formation of froth. |
| 4. | This method is used for concentration of zinc blende and copper pyrite. | This method is used for the concentration of bauxite. |
APPEARS IN
RELATED QUESTIONS
Metal A has an electronic configuration of 2, 8, 1 and metal B has 2, 8, 8, 2 which is a more reactive metal.
Give the effect of heat on their: carbonates
Define the term ‘metallurgy’. State the processes involved in metallurgy ?
Name the processes involved in refining of ores.
Explain the following term:
Gangue
Name the methods used for purification?
`Ag2O`
................................
`MnO_2 + 4Al`
…………….
`ZnCO_3`
..............................
`2Pb(NO3)_2`
.........................
`2Cu_2O +Cu_2S`
......................
Give the ionization reactions of electrolyte used in Hall’s process. write the reaction at the cathode and the anode. Why the anode has to be replaced in this process?
Explain the term of Metallurgy .
Write the molecular formulae of the following compound.
Stannic oxide
Identify the following method of concentration of ores and explain briefly.

Observe the figure and name and explain in brief the following method:

State the reason for the addition of caustic alkali to bauxite ore during the purification of bauxite.
Explain the smelting process.
Which of the following methods is used to separate wolframite and stannic oxide present in cassiterite?
A process of extracting metals from aqueous solutions of their salts using suitable reducing agents is called ______
