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Which two major constituents form th all...

Which two major constituents form th alloy duralumin ?

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BHARATI BHAWAN (ENGLISH)-METALS AND NONMETALS -Very short answer Questions
  1. A given nonmetal forms sulphuric acid on reacting with nitric acid. In...

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  2. Write one constituent each of brass and bronze that is not common to b...

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  3. Which two major constituents form th alloy duralumin ?

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  4. What would happen to the roadside iron railings if they are not pained...

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  5. Define vulcanization.

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  6. Name two metals which can displace hydrogen from dil. H(2)SO(4) and tw...

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  7. Name the reducing agent which reduces the iron ore in the blast furnac...

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  8. Does copper react with dilute hydrochloric acid ?

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  9. Which one is more reactive : copper or zinc ?

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  10. Is lead a very good conductor of electricity ?

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  11. Why is silver a costly metal ?

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  12. Name the liquied in which gold dissolves.

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  13. Name one use of sulphur.

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  14. In what respect does graphite resemble a metal ?

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  15. Give reasons why metals are good conductors , whereas nonmetals do not...

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  16. Name two significant properties of a metal.

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  17. Explain why metals replace hydrogen from acids, whereas nonmetals do n...

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  18. Sodium hydroxide should not be stored in aluminium containers. Why ?

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  19. Explain why zinc metal can displace copper from copper sulphate soluti...

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  20. Why is sodium kept under kerosene ?

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