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Limestone is not used in which of the fo...

Limestone is not used in which of the following manufacturing processes?

A

phosphorus from phosphorite

B

Ordinary (soda lime) glass

C

Iron from haematite

D

Solvay process of sodium carbonate

Text Solution

Verified by Experts

The correct Answer is:
A
Limestone is not used in the extraction of phosphorus from phosphorite, `Ca_3(PO_4)_2`
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DINESH PUBLICATION-ALKALI EARTH METALS-Revision Questions From Competitive Exams.
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  4. On heating quicktime with coke in an electric furnace, we get

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  6. The metal present in chlorophyll is

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  7. A solution of MgCl(2) in water has pH

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  8. Bleaching action of Bleaching powder is due to the liberation of

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  9. 30g Mg and 30g O(2) are reacted and the residual mixture contains:

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  10. Which of the following salt will give a green colour in fire works?

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  11. Bleaching powder is obtained by the interaction of Cl2 and

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  12. Carnallite on electrolysis gives

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  13. The solubilities of carbonates decreases down the magnesium group due ...

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  14. The substance not likely to contain CaCO(3) is:

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  15. Serveral blocks of magnesium are fixed to the bottom of a ship to

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

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  18. The product obtained on fusion of BaSO(4) and Na(2)CO(3) is

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