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Why is pine oil used in froth floatation...

Why is pine oil used in froth floatation method?

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Choose the correct alternative : Pine oil is added in froth floatation method because it increases the non-wettability/ wettability of the mineral particles.

Which one of the following ore is best concentrated by froth floatation method?

Describe the principle involved in the following process of metallurgy : Froth floatation method

An ore sample of galena (PbS) is contaminated with zinc blende (ZnS). Name one chemical which can be used to concentrate galena selectively by froth floatation method.

What is the role of a stabilizer in froth floatation process ? Give examples.

Assertion : Sulphide ores are concentrated by Froth Flotation method. Reason : Cresols stabilise the froth in Froth Flotation method.

Which of the following is used as a depressant in froth floatation process ?

Explain the method of froth floatation process of concentrating sulphide ore.

What is froth floatation process ? Name the ores which are concentrated by froth floatation process . What is meant by a depressant ?

Sulphide ores are concentrated by froth floatation process.

MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE
  1. Assertion : Zone refining method is very useful for producing semicond...

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  2. Assertion : Hydrometallurgy involves dissolving the ore in a suitable ...

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  3. Why is pine oil used in froth floatation method?

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  4. Which is better reducing agent at temperature 983 K, C or Co?

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  5. Define fauna.

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  6. How does adsorption of gases on solids depend upon: Temperature?

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  7. The cause of Brownian movement is

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  8. What is Tyndall effect? Why do colloidal solutions show Tyndall effect...

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  9. What are enzyme catalysts? Give two examples of enzyme catalysis react...

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  10. Compare lyophilic and lyophobic sols in term of Stability .

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  11. What are lyophilic and lyophobic sols ? Give one example of each. Why ...

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  12. Define calcination and roasting.

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  13. State the role of silica in the metallurgy of copper.

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  14. Describe the role of the following in the processes mentioned: Iodine ...

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  15. Describe the role of the following : NaCN in the extraction of silver ...

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  16. What is the role of cryolite in the metallurgy of aluminium ?

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  17. Outline the principle of refining of metals by electrolytic refining.

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  18. Outline the principles involved in the following methods of refining o...

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  19. Outline the principles involved in the following methods of refining o...

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  20. Explain what is observed :- electric current is passed through a collo...

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