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Consider the following statements (A) ...

Consider the following statements
(A) Gypsum contains a low percentage of calcium than plaster of paris
(B) Plaster of paris can be reobtained by hydration of dead plaster
(C ) Gypsum looses `3//2` of its water of crystallisation formes plaster of paris at `120^(@)C`
(D) Plaster of paris can be obtained by partial oxidation of gypsum
Arrange them in the order of true/false

A

TFTF

B

"FF"TF

C

"TT""FF"

D

"TTTT"

Text Solution

Verified by Experts

The correct Answer is:
A
Gypsam contains a low `%` of Ca than plaster of paris.
Plaster of paris cann.t be reobtained by hydration of dead plaster
Gypsum looses `(3)/(2)` of its water of crytallisation forming plaster of paris at `120^(@)C`.
Plaster of paris cann.t be obtained by partial oxidation of gypsum
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AAKASH SERIES-ALKALINE EARTH METALS-Lecture sheet (Level-II (Advanced))
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  2. A doctor by mistake administres a dilute Ba(NO(3)) solution to a patie...

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  3. Consider the following statements (A) Gypsum contains a low percenta...

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  4. Which of the following are correct

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  5. Which following are in correct

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  6. Which of the following are correct

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  7. Which of the following statements are false regarding BeCl(2)

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  8. During setting of plaster of paris which of the following process take...

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  9. 'A' is widely used as slow acting nitrogeneous fertilizer.

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  10. 'B' is a weak basic aqueous NH(3) solution

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  11. The compound 'C' is used to make urea and Thio urea.

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  12. The compound 'D' is used as nitrogeneous fertilizer.

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  13. The compound 'A' on heating gives a colourless gas and a residue. The ...

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  14. The compound 'A' on heating gives a colourless gas and a residue. The ...

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  15. The compound 'A' on heating gives a colourless gas and a residue. The ...

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  16. Match the following columns

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  17. Match the following columns

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  18. The value of 'n' in the molecular formula Be(n) Al(2)Si(6)O(18) is

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  19. When gypsum is heated at 393K, the compound formed is CaSO(4).XH(2)O v...

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  20. How many of the following will turn moist red litmus blue and finally ...

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