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How is plaster of paris prepared ?...

How is plaster of paris prepared ?

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Plaster of paris is a hemihydrate of calcium sulphate `CaSO_(4).1//2H_(2)O` It is obtained by heating gypsum at 393 K.
`underset("Gypsum")(2CaSO_(4)).2H_(2)O_((S))overset(/_\)tounderset("Plaster of paris")(2CaSO_(4).H_(2)O)+3H_(2)O`
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FULL MARKS-ALKALI AND ALKALINE EARTH METALS-Textual Evaluation Solved(II.write brief answer to the following questions)
  1. Give the uses of gypsum.

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  2. Describe briefly the biological importance of calcium and magnesium.

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  3. Which would you expect to have a higher melting point, magnesium oxide...

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  4. Why sodium hydroxide is much more water soluble than chloride?

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  5. Write the chemical equations for the reactions involved in solvay proc...

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  6. An alkali metal (x) forms a hydrated sulphate, X2SO4.10H2O. Is the met...

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  7. Write balanced chemical equation for each of the following chemical re...

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  8. Discuss briefly the similarities between beryllium and aluminium

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  9. Give the systematic names for the following: (i) milk of magnesia ...

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  10. Substantiate lithium fluoride has the lowest solubility among group on...

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  11. Mention the uses of plaster of paris

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  12. Beryllium halides are covalent whereas magnesium halides are ionic. Wh...

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  13. Alk aline earth metal (A), belongs to 3rd period reacts with oxygen an...

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  14. Write balanced chemical equation for the following processes: (a) h...

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  15. Explain the important common features of Group 2 elements

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  16. Why alkaline earth metals are harder than alkali metals.

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  17. How is plaster of paris prepared ?

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  18. Give the uses of gypsum.

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  19. Describe briefly the biological importance of calcium and magnesium.

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  20. Which would you expect to have a higher melting point, magnesium oxide...

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