Advertisements
Advertisements
प्रश्न
Suspension of slaked lime in water is known as ______.
विकल्प
lime water
quick lime
milk of lime
aqueous solution of slaked lime
Advertisements
उत्तर
Suspension of slaked lime in water is known as milk of lime.
Explanation:
Ca(OH)2 saked lime is only sparingly soluble in water. When CaO is soaked in water, it produces a white suspension, and the reaction is highly exothermic. White suspension is called milk of lime and it is used for whitewashing.
APPEARS IN
संबंधित प्रश्न
Describe two important uses of the following quicklime.
Describe the importance of the limestone.
Dead burnt plaster is ______.
A substance which gives brick red flame and breaks down on heating to give oxygen and a brown gas is ______.
Which of the following statements is true about Ca(OH)2?
Several sodium compounds find use in industries. Which of the following compounds are used for textile industry?
(i) Na2CO3
(ii) NaHCO3
(iii) NaOH
(iv) NaCl
Match the elements given in Column I with the properties mentioned in Column II.
| Column I | Column II |
| (i) Li | (a) Insoluble sulphate |
| (ii) Na | (b) Strongest monoacidic base |
| (iii) Ca | (c) Most negative EΘ value among alkali metals. |
| (iv) Ba | (d) Insoluble oxalate |
| (e) 6s2 outer electronic configuration |
When water is added to compound (A) of calcium, solution of compound (B) is formed. When carbon dioxide is passed into the solution, it turns milky due to the formation of compound (C). If excess of carbon dioxide is passed into the solution milkiness disappears due to the formation of compound (D). Identify the compounds A, B, C and D. Explain why the milkiness disappears in the last step.
A substance absorbs \[\ce{CO2}\] and violently reacts with water. That substance is ______.
Initial setting of cement is mainly due to ______.
The conversion of hydroxyapatite occurs due to presence of p - ions in water. The correct formula of hydroxyapatite is ______.
In curing cement plasters, water is sprinkled from time to time. This helps in ______.
The substance not likely to contain CaCO3 is ______.
