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प्रश्न
Complete the following flowchart.
उत्तर
| Separation method of metals | |||
| Wilfley table method | Hydraulic separation method | Magnetic separation method | Froth floatation method |
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संबंधित प्रश्न
Give the importance of the following for living beings:
Carbon
A student has been collecting silver coins and copper coins. One day she observed a black
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responsible for these coatings? Write the names of black and green coatings.
Define the term ‘metallurgy’. State the processes involved in metallurgy ?
Name:
(a) the processes involved in
concentration :-
Explain the following terms:
(a) flux
Explain the following term:
Gangue
`ZnCO_3`
..............................
`2NaNO_3`
......................
`HgS + O_2`
..................
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?
Distinguish between electrolytic methods of reduction and refining.
Complete the following flow chart and answer the questions below:
i) In which method pine oil is used?
ii) Explain what method of concentration in brief.
Why does iron or zinc not occur free in nature?
Write the molecular formulae of the following compound.
Ferrous tungstate
Distinguish between:
Froth floatation - Leaching
Identify the following method of concentration of ores and explain briefly.
State the reason for the addition of caustic alkali to bauxite ore during the purification of bauxite.
Which of the following methods is used to separate wolframite and stannic oxide present in cassiterite?
Bassemerisation is used in the extraction of ______.
