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Show by means of chemical equations how roasting can convert a sulphide ore into oxide.

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Which of the following faction is of no significance for roasting sulphide ores to the oxide and not subjecting the sulphide ores in carbon reduction directly ?

Roasting of sulphide ore is generally performed in

A metal obtained directly by roasting of its sulphide ore is

Two Ores on Heating, A gives CO_2 , whereas ore B gives SO_2 . Explain the processes with help of balanced chemical equation, which is used to convert ores A and B into their oxide ores with an example.

Two Ores on Heating, A gives CO_2 whereas ore B gives SO_2 . Explain the processes with help of balanced chemical equation, which is used to convert ores A and B into their oxide ores with an example.

BHARATI BHAWAN (ENGLISH)-METALS AND NONMETALS -Very short answer Questions
  1. State any four uses of aluminium.

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  2. From among the following , choose metals and nonmetals. State one of t...

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  3. What happens when NH(4)OH is added to an aqueous solution of aluminium...

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  4. What is rust ? How is it formed ?

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  5. What do you mean by corrosion of metals ?

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  6. Explain why iron sheets are coated with zinc.

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  7. Mention any one method by which corrosion of metals can be prevented.

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  8. What is an alloy ? Write the composition of brass or bronze.

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  9. What is stainless steel? Mention two of its properties.

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  10. Give the equation(s) to show what happens when NH(4)OH is gradually ad...

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  11. what is vulcanization of rubber ?

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  12. Mention a reaction showing the reducing property of SO2 .

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  13. Why is hydrogen, a nonmetal, is included in the activity series of met...

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  14. What is amalgam ? How does it differ from alloy ?

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  15. Explain why alloy is a uniform mixture.

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  16. Show by means of chemical equations how roasting can convert a sulphid...

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  17. Name the process that is used to concentrate sulphide ore. Describe br...

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  18. What is an alloy ? Write the composition of an alloy called bronze. Gi...

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  19. Write the chemical formula of cryolite. What is the purpose of adding ...

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  20. Why is sulphur used in the vulcanization of rubber ?

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