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Formula of plaster of Paris is...

Formula of plaster of Paris is

A

`CaSO_4 *2H_2O`

B

`CaSO_4.H_2O`

C

`Ca_2SiO_4. 2H_2O`

D

`CaSO_4. (1)/(2) H_2O `

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The correct Answer is:
D
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MODERN PUBLICATION-S-BLOCK ELEMENTS ( ALKALI AND ALKALINE EARTH METALS ) -COMPETITION FILE ( MULTIPLE CHOICE QUESTION (B))
  1. Which of the following compounds has the lowest melting point ?

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  2. Choose the incorrect statement in the following

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  3. Formula of plaster of Paris is

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  4. Which one of the alkali metals forms only the normal oxide, M(2)O, on ...

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  5. Which of the following is the weakest base?

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  6. Which one of the following is the strongest base ?

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  7. The element responsible for the neuromuscular function in the body is

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  8. The salt of an alkali metal gives yellow colour in the flame test. Als...

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  9. The function of "Sodium pump" is a biological process operating in eac...

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  10. On heating which of the following release CO(2) most easily ?

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  11. Which of the following statement is false?

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  12. In context with beryllium, which one of the following statements is in...

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  13. Ionic mobility of which of the following alkali metal ions is lowest w...

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  14. Which of the following oxides is most acidic in nature ?

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  15. Among CaH(2),BeH(2),BaH(2), the order of ionic character is

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  16. Which of the following is an amphoteric hydroxide

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  17. Which of the following is an amphoteric hydroxide

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  18. Based on lattice energy and other considerations which one of the foll...

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  19. The ionic mobility of alkali metal ions in aqueous solution is maximum...

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  20. Which of the following is formed by the action of water on sodium pero...

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