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Fill ups Most oxides of metal are………………i...

Fill ups
Most oxides of metal are………………in nature.

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MODERN PUBLICATION-METALS AND NON-METALS-EXERCISE
  1. Can copper displace iron from iron sulphate solution? Give reasons.

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  2. The rockey material found with ores is known as…………….

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  3. Fill ups Most oxides of metal are………………in nature.

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  4. Fill ups the percentage of gold in 22 carat gold is………….. .

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  5. Fill ups In galvanisation iron is protected by the coating of………….. .

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  6. In the electrorefining of copper,some gold is deposited as:

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  7. Why ae metals called electropositive elements and non-metals called el...

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  8. Which of the two metals copper and silver is more reactive?

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  9. Name two metals which react with dilute nitric acid to produce hydroge...

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  10. Give one example of each of metal that is good conductor of electricit...

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  11. An element M forms an oxide M2O3. Which is acidic in nature. State whe...

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  12. A solution of CuSO4 was kept in an iron pot. After a few days the iron...

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  13. Define calcination and roasting.

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  14. What would happen to iron railings on the roadside if they are not pai...

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  15. Explain the following: Carbon cannot reduce the oxides of Na and Mg.

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  16. Explain the following: Reactivity of Al decreases if it is dipped in H...

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  17. Explain the following: Titanium is a strategic metal.

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  18. A,B and C are three elements which undergo chemical changes according ...

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  19. A,B and C are three elements which undergo chemical changes according ...

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  20. Consider the following reactions : (i) A + B SO4 rarr a SO4 +B (ii...

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