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In curing cement plasters, water is spri...

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

A

Converting sand into silcic acid

B

Keeping it cool

C

Developing interlocking needle like crystals of hydrated silicates

D

hydrating sand and gravel mixed with cement

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In curing cement plasters water is sprinkled from time to time. Time helps in

In curing cement plaster, water is sprinkled from time to time. Which of the following statements are incorrect? (A) keeping it cool (B) converting sand in to silicic acid (C) hydrated sand gravel mixed with cement (D) developing interlocking needle like crystals of hydrated silicates

Assertion (A): In curing cement plasters, water is sprinkled form time to time. Reason (R ): It converts sand into silicic acid.

How is gypsum converted into plaster of paris ? Why is plaster of paris helpful in setting broken bones?

NARAYNA-S-BLOCK ELEMENTS-LEVEL-II(C.W)
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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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