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Boverset(200^(@)C) leftarrowCaSO(4).2H(...

`Boverset(200^(@)C) leftarrowCaSO_(4).2H_(2)Ounderset(Heat)overset(120^(@)C)toA`
`Boverset ("stronglyheated")toC" here"` A,B andC Respecetivly

A

Plaster of pariis ,Dead bead purnt plaster , calcium sulphide

B

Dead burnt of plaster,plaster of paris ,lime

C

Plaster of paris ,dead burnt plaster ,lime

D

Anhydroous calcium sulphate ,plaster of paris calcium sulphite

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NARAYNA-S-BLOCK ELEMENTS-LEVEL-II(C.W)
  1. Which of the following will have highest hydration energy ?

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  2. Which of the following fumes in moisture in air ?

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  3. Which of the following is highly exothermic in water.

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  4. Which of the following is a covalent solid ? (i) AF(3) (ii) Acl(...

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  5. Passivity is exhibited by i) Be ii)Mgiii)Aliv)B

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  6. The alkaline reath metal ion that has least electrical conducitivty in...

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  7. Both Be & Al reacts with sodium hydroxide and liberates

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  8. The calcium salt used as manure is

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  9. Portland cement does not contain:

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  10. In a following chemical reaction: CaO + C overset(Delta) to x + CO x...

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  11. IN the cement the ratio sillica and Alumina is

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  12. Hardening of plaster of paris is because of paris is because of

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  13. Cement is a

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  14. Slaked lime is obtained when water is added to

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  15. Boverset(200^(@)C) leftarrowCaSO(4).2H(2)Ounderset(Heat)overset(120^(...

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  16. In curing cement plasters, water is sprinkled from time to time. This ...

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  17. Which of the following compound of cement sets at the slowest rate?

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  18. Calcium imide on hydrolysis will give gas (B) which on oxidation by be...

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  19. A doctor by mistake administers a Ba(NO(3))(2) solution to a patient f...

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  20. Which of the following is /are correct?\

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