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What is meant by activity series of meta...

What is meant by activity series of metals ?

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(a) What is reactivity series of metals ? What can you say about the reactivity of metals which are placed: (i) in the middle of reactivity series? (ii) towards the bottom of reactivity series? (iii) towards the top of reactivity series? (b) A metal is placed in the middle of reactivity series. Suggest a chemical process to obtain this metal from its oxide. Support you answer with one example. (c) A metal is placed towards the top of the reactivity series. Suggest a chemical process to obtain this metal from oxide. Support your answer with one example.

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BHARATI BHAWAN (ENGLISH)-METALS AND NONMETALS -Very short answer Questions
  1. Why are metals called electropositive elements?

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  2. Which of the following elements is a metal ? (11)^(23)X " " (9)^(1...

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  3. What is meant by activity series of metals ?

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  4. Arrange Ca,Zn,Ba,Fe,Au,Ag and Cu in order of decreasing reactivity.

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  5. Explain why silver does not displace hydrogen from a dilute acid solu...

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  6. What is the most common property of the metals lying at the bottom of ...

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  7. An element X on reacting with oxygen forms an oxide X(2)O . This diss...

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  8. An iron knife dipped in a blue copper sulphate solution turns the blue...

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  9. Name two allotropes of sulphur.

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  10. Give the chemical name of the slag produced in the blast furnace durin...

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  11. what is an amalgam?

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  12. What happens when aluminium nitride reacts with water ?

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  13. What is obtained when graphite is heated under high pressure in the pr...

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  14. Name one alloy each of iron and aluminium.

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  15. Why is cryolite added to bauxite in the extraction of aluminium ?

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  16. What is galvanization ?

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  17. Write the molecular formula of sulphur molecule.

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  18. Name the oxide ore of aluminium.

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  19. Name the constituents of an alloy called German silver.

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  20. A given nonmetal forms sulphuric acid on reacting with nitric acid. In...

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