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What is a rock salt ?...

What is a rock salt ?

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1) Deposits of solid salts are found in several parts of the world. These deposits of large ciystals are often brown due to impurities. This is called rock salt.
2) Beds of rock salt were formed when seas of bygone ages dried up Rock salt is mined like coal.
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VGS PUBLICATION-BRILLIANT-ACIDS, BASES AND SALTS -Section-2
  1. What is the reaction of Plaster of Paris with water ?

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  2. What are the salts obtained from common salt ?

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  3. What is a rock salt ?

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

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

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  6. Write any two Acid Base indicators.

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

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  8. What is the name of aqueous sodium chloride ?

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  9. Who introduced pH ?

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

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  11. Give pH of neutral, acid and base.

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

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

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  14. Give some examples for hydrous and anhydrollls salts.

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

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

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

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

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

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

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