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Why is gypsum added to cement?...

Why is gypsum added to cement?

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Gypsum is added to cement to slow down the setting process.
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(A): 2-3% Gypsum by weight is mixed with cement (R) : Gypsum increases the rate of setting of cement

VGS PUBLICATION-BRILLIANT-THE s-BLOCK ELEMENTS -Long Answer Question (8 Marks)
  1. Why is gypsum added to cement?

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  2. Justify the inclusion of alkali metals in the same group of the period...

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  3. Justify the inclusion of alkali metals in the same group of the period...

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  4. Justify the inclusion of alkali metals in the same group of the period...

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  5. Write an essay on the differences between lithium and other alkali met...

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  6. Discuss the preparation and properties of sodium carbonate.

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  7. Discuss the similarities between alkaline earth metals and gradation i...

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  8. Discuss the similarities between alkaline earth metals and gradation i...

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  9. Discuss the similarities between alkaline earth metals and gradation i...

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  10. Discuss on : (i) Carbonates.

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  11. Discuss on : (ii) Sulphates.

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  12. Discuss on : (iii) Nitrates of alkaline earth metals.

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  13. What are the common physical and chemical features of alkali metals?

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  14. Discuss the general characteristics and gradation in properties of alk...

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  15. Discuss the various reactions that occur in the Solvay process.

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  16. Starting with sodium chloride how would you proceed to prepare (1) S...

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  17. Starting with sodium chloride how would you proceed to prepare (2) S...

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  18. Starting with sodium chloride how would you proceed to prepare (3) S...

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  19. Starting with sodium chloride how would you proceed to prepare (4) S...

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  20. What happens when (i) Magnesium is burnt in air?

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  21. What happens when (ii) Quick lime is heated with silica?

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