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What is the following compounds (Give eq...

What is the following compounds (Give equations for the reactions)?What is the effect of heat on the following compounds (Give equations for the reactions)?
(1) `CaCO_(3)`
, (ii) `CaSO_(4).2H_(2)O`

Text Solution

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`CaCOoverset("heat")to CaO + CO_(2)`
(ii) `CaSO_(4).2HO_(2)Ooverset("heat")tounderset("plaster")underset("Dead burnt")(CaSO_(4)) + 2H_(2)O`
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FULL MARKS-ALKALI AND ALKALINE EARTH METALS-Additional Questions Solved
  1. Why are lithium salts commonly hydrated and those of the other alkali ...

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  2. Why are alkali metals always univalent? Which alkali metal ion forms l...

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  3. What is the following compounds (Give equations for the reactions)?Wha...

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  4. Explain the following: (a) Lithium iodide is more covalent than lit...

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  5. Why alkali metals are soft and have low melting points?

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  6. Why is LiF almost insoluble in water, whereas LiCl soluble not only in...

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  7. Give reasons for the following. Sodium and potassium are stored in ker...

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  8. What is the structure of BeCl(2) ?

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  9. Why is Li(2)Co(3) decomposed at a lower temperature whereas Na(2)CO(3)...

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  10. . Alkali metals give colouration when heated in Bunsen flame. Give rea...

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  11. How Sodium metal  reacts with (i) ethanol and (ii) acetylene.

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  12. Mention the uses of lithium and its compounds.

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  13. What are the uses of sodium and its compounds?

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  14. What are the uses of potassium and its compounds?

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  15. What is soda ash ? How it obtained ?

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  16. List down the uses of washing soda.

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  17. How would you prepare pure sodium chloride from crude salt?

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  18. Mention the uses of sodium chloride.

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  19. List the uses of sodium hydroxide.

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  20. Give reason why sodium bicarbonate is used in bakeries.

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