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What is the composition of the white pow...

What is the composition of the white powder obtained when metallic magnesium is burnt in air?

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A mixture of MgO and `Mg_2N_2`
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CHHAYA PUBLICATION-s-BLOCK ELEMENTS -EXERCISE (VERY SHORT-TYPE QUESTIONS)
  1. Name the alkali metals which form superoxides when heated with excess ...

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  2. Which one is lightest and which one is heaviest of all the metals?

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  3. What is the composition of the white powder obtained when metallic mag...

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  4. Name two metals of group-2 which do not impart any colour to the flame...

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  5. Which alkali metal cannot be stored in kerosene?

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  6. Which alkali metal is used as a scavenger in metallurgy to removeO2 an...

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  7. Which Gr-2 metal carbide reacts with water to produce methane?

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  8. In aqueous solution, which alkali metal ion has the lowest mobility?

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  9. Which is the most abundant alkaline earth metal in the earth's crust?

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  10. Name one biologically important complex formed by a group-2 metal.

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  11. Which alkali metal ion forms a stable complex with 18- crown-6

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  12. Which alkaline earth metal is largely used as a light weight construct...

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  13. Which alkaline earth metal forms an organometallic compound known as G...

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  14. Which alkali and alkaline earth metals are radioactive in nature?

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  15. The salts of which alkali metal are commonly hydrated?

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  16. Which alkali metal acts as the strongest reducing agent in aqueous sol...

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  17. Which is the least stable alkali metal carbonate?

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  18. What is baryta water?

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  19. Which alkaline earth metal hydroxide is most soluble in water?

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  20. Which alkaline earth metal imparts crimson colour to flame?

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