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The addition of limited amount of water ...

The addition of limited amount of water disintegrates the hard lumps of CaO. During this process called ____, a hissing sound and a large amount of heat is released.

A

hydration of lime

B

hydrolysis of lime

C

dehydration of lime

D

slaking of lime

Text Solution

Verified by Experts

The correct Answer is:
D
`CaO+H_(2)OtoCa(OH)_(2),DeltaH=-64.5kJmol`
The process is called slaking of lime and the product obtained as find powder is called slaked lime.
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R SHARMA-THE S BLOCK ELEMENTS-Follow-up Test 11
  1. Quick lime is prepared on a commercial scale by heating in a rotary k...

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  2. Which of the following is incorrect for quick lime ?

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  3. The addition of limited amount of water disintegrates the hard lumps o...

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  4. Soda lime is a mixture of

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  5. Lime is used for

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  6. Calcium hydroxide is called slaked lime. It is prepared on a commercia...

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  7. Which of the following is incorrect for slaked lime ?

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  8. A suspension of slaked lime in water is called

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  9. Bleaching powder is prepared by passing chlorine into

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  10. Which of the following changes occur when an excess of CO(2)(g) is pas...

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  11. Limestone rock is the commonest form of calcium carbonate which also o...

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  12. Calcium carbonate, commonly called limestone, is prepared by passing C...

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  13. Which of the following in incorrect for CaCO(3) ?

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  14. Calcium carbonate along with is used as a flux in the extraction of m...

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  15. Calcium carbonate is used as (i) a filler in cosmetics (ii) a cons...

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  16. Plaseter of Paris, a white powder, is

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  17. Plaster of Paris is obtained when gypsum is heated to

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  18. Plaster of Paris has a remarkable property of setting with water. On m...

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  19. The raw materials for the manufacture of Portland cement (or just ceme...

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  20. Cement is essentially a finely powdered mixture of calcium silicates a...

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