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Define calcination....

Define calcination.

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MODERN PUBLICATION-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS-EXERCISE
  1. Name and write the chemical formulae Of the three oxide ores of iron.

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  2. Explain the following : Why is zinc and not copper used for the recove...

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  3. Define calcination.

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  4. Ilmenite is an ore of

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  5. Barytes is an ore of barium. True or False

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  6. Describe the method of refining of nickel.

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

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  8. Write the name of purest form of iron.

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  9. Why are sulphide ores converted to oxide before reduction ?

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  10. What is malachite? Write down its formula.

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  11. Fill in the blanks- metal alloy is used in marine engineering.

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  12. How is zinc obtained from zinc blende? Give Chemical reactions.

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  13. Fill in the blanks- is the ore from which aluminium metal is extracte...

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  14. How is Ni purified by Mond’s process?

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

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  16. How does the FeO impurity present in sulphide ore of copper is removed...

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  17. Which of the following is the ore of zinc?

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  18. Name the method used for refining of Zirconium.

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  19. Name the method of refining of metals such as germanium.

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  20. In the extraction of Al, impure Al2O3 is dissolved in conc. NaOH to fo...

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