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What is plaster of Paris and how is it p...

What is plaster of Paris and how is it prepared?

A

`CaSO_4 . H_2O`

B

`CaSO_4 . 2H_2O`

C

`CaSO_4 . ""_2^1H_2O`

D

`CaSO_4 . 1 1/2 H_2O`

Text Solution

Verified by Experts

The correct Answer is:
C
`CaSO_4 . ""_2^1H_2O`
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ICSE-THE s - BLOCK ELEMENTS-OBJECTIVE (MULTIPLE CHOICE) TYPE QUESITONS (Choose the correct option in the following questions)
  1. The flame test with a salt P gave a brick red flame. What is the catio...

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  2. A substance absorbs CO2 and violently reacts with water. The substance...

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  3. What is plaster of Paris and how is it prepared?

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  4. Portland cement is manufactured by using

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  5. Which one of the following components of cement sets at the slowest ra...

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  6. When Na2CO3 . 10 H2O is kept open in air, it (a)absorbs moisture (b)...

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  7. Describe the setting of plaster of Paris.

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  8. Which of the following elements differs from the rest in several physi...

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  9. What is Sorel's cement and how is it prepared?

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  10. When epsom salt is heated at 150^@C, the compound obtained is

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  11. When CaO is heated in an oxy-hydrogen flame,

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  12. When slaked lime is treated with chlorine, the product obtained is (a...

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  13. Which of the following is not chemically CaCO3 ?

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  14. When a mixture of anhydrous Na2CO3 and NaHCO3 is heated to 100^@C, a ...

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  15. The chloride that can be extracted with ether is

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  16. The weakest base among the following is

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  17. Calcium chloride and potassium chloride solutions could easily be dist...

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  18. The mobilities of the alkali metal ions in aqueous solution are Li^(+)...

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  19. Both lithium and magnesium display several similar properties due to t...

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  20. A water sample has ppm level concentration of following anions F^(-)...

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