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What is retrograde solubility ?...

What is retrograde solubility ?

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Gypsum is a soft mineral and it is less soluble in water as the temperature in known as retrograde solubility, which is a distinguishing characteristic of gypsum
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FULL MARKS-ALKALI AND ALKALINE EARTH METALS-Additional Questions Solved
  1. How gypsum occurs in nature?

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  2. How is gypsum synthesized?

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  3. What is retrograde solubility ?

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  4. Write a note about physical appearance of gypsum.

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  5. Prove that gypsum is a natural insulator

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  6. Write a note about alabaster.

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  7. What is dead burnt plaster ?

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  8. What is meant by setting of cement?

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  9. Which is the most abundant metal found in the human body? Explain how ...

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  10. In what ways lithium snows similarities to magnesium in its chemical b...

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  11. Explain why can alkali and alkaline earth metals not be obtained by ch...

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  12. Why are potassium and caesium, rather than lithium used in photochemic...

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  13. Beryllium and magnesium do not give colour to flame whereas other alka...

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  14. Why are lithium salts commonly hydrated and those of the other alkali ...

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

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

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

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

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

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

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