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Give the composition of brass and German...

Give the composition of brass and German silver

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ICSE-GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS -EXERCISE (PART-II ( DESCRIPTIVE QUESTIONS )) (VERY SHORT ANSWER QUESTIONS)
  1. List the name and formulae of two important ores of copper.

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  2. What is blister copper?

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  3. Give the composition of brass and German silver

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  4. What are the constituents of anode mud formed during electrolytic refi...

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  5. Which metal is used to protect the iron sheets from rusting by a proce...

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  6. What is galvanization ?

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  7. Give two important uses of zinc metal.

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  8. Name three different forms of iron.

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  9. Out of cast iron and wrought iron, which is more malleable?

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  10. Which metals are present in Chlorophyll

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  11. Which metals are present in Haemoglobin

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  12. Name the elements which are recovered commercially from sea water.

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  13. What is "Spiegel" ? When is it used ?

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  14. Name a noble metal and a metalloid.

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  15. Give one example each of a liquid metal and a noble metal.

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  16. Why is zinc not extracted from zinc oxide through reduction using CO?

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  17. Write chemical reactions taking place in the extraction of zinc from z...

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  18. Which metal is used to protect the iron sheets from rusting by a proce...

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  19. How is galena (PbS) present as impurity removed from the ore of zinc b...

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  20. Write a balanced equation for the reaction of argentite with KCN and n...

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