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Write the formulas of gypsum and Plaster...

Write the formulas of gypsum and Plaster of Paris.·

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The formulae of gypsum is `CaSO_4*2H_2O` and Plaster of Paris is `CaSO_4*1//2H_2O`
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VGS PUBLICATION-BRILLIANT-ACIDS, BASES AND SALTS -Section-2
  1. What is a rock salt ?

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  2. What does 10H2O signify in the formula :Na2CO3.10H2O ?

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  3. Write the formulas of gypsum and Plaster of Paris.·

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  4. Write any two Acid Base indicators.

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  5. Which salt is used in the manufacture of borax?

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  6. What is the name of aqueous sodium chloride ?

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  7. Who introduced pH ?

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  8. Is the substance present in antacid tablet acidic or basis ?

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  9. Give pH of neutral, acid and base.

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  10. What is conformation test for hydrous and anbydrous salt ?

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  11. P.O.P, cement, calcium chloride should be stored in moisture proof con...

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  12. Give some examples for hydrous and anhydrollls salts.

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  13. X is a substance, which was given red colour ,ivith methyl orange solu...

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  14. "A + B to Salt + water". It was written on the blackboard. To find the...

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  15. There are 3 substances in test tube A, test tub1e B and test tube C. B...

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  16. Suggest to your friend, the substances required to prepare sodium zinc...

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  17. X' is a substance which gives CO2 , water and. common salt on adding H...

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  18. Observe and prepare two questions while doillLg the following activity...

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  19. Predict 'X' from the given figure. If X+basetowater+NaCl

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  20. Guess the reason for that the HCl, evolved in the reaction. 2NaCl+H2S...

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