HARD
Earn 100

Describe the Froth- Flotation process.

Important Questions on General Principles and Processes of Isolation of Elements

MEDIUM
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores
How will you extract zinc from zinc blende? Give all the equations involved.
MEDIUM
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores
What is the concentration of ore? 
MEDIUM
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores
Explain gravity separation method for the concentration of ore.
EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores
Sulphide ores are concentrated by froth floatation process only. Why?
EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores

Explain role of the following in the processes mentioned :

Depressant in froth floatation process.

EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores
What is the role of depressant NaCN in Froth-Flotation method ?
HARD
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores
Explain the froth floatation process with a neat labelled diagram.
EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores

Which method is not used for concentration of ores?

MEDIUM
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores
Explain froth flotation process used for concentration of ores.
EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores

Write short notes on :

Froth floatation process

MEDIUM
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores
Draw a lablled diagram of froth floatation.
MEDIUM
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores
Explain the role of NaCN in the separation of ZnS and PbS.
EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores
Sulphide ores are generally concentrated by 
MEDIUM
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores
Explain magnetic separation method of concentration of ores with labelled diagram.
EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores
Which of the following statement is correct about the role of substances added in the froth flotation process?
EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores
The ores that are concentrated by froth floatation method are _____ .
EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores

Give the general method used for the concentration of the following ore:

Zinc sulphide ore

HARD
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores

Which process is used for the enrichment of (i) sulphide ores and (ii) oxide ores?

EASY
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores
 Name the depressant used for the separation of ZnS ore from PbS ore during froth floatation process. 
HARD
Chemistry>Inorganic Chemistry>General Principles and Processes of Isolation of Elements>Concentration of Ores
Explain the purification of sulphide ore by froth floatation method.