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Why are metals called electropositive el...

Why are metals called electropositive elements?

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BHARATI BHAWAN (ENGLISH)-METALS AND NONMETALS -Very short answer Questions
  1. (a) Define the terms (i) mineral (ii) ore and (iii) gangue. (b) What...

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  2. Why are nonmetals electronegative in nature ?

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  3. Why are metals called electropositive elements?

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

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  5. What is meant by activity series of metals ?

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

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

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

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

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

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  11. Name two allotropes of sulphur.

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

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  13. what is an amalgam?

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  14. What happens when aluminium nitride reacts with water ?

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

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  16. Name one alloy each of iron and aluminium.

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

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  18. What is galvanization ?

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  19. Write the molecular formula of sulphur molecule.

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  20. Name the oxide ore of aluminium.

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