In the solvay process for the manufacture of sodium carbonate,The clear ammonical brine is now fed to the top of a tower known as_________________.
Lime klin tower.
Carbonation tower.
Ammonia recovery tower.
None of the above.
Sodium chloride is used for the purification of ___________________.
Water.
Soap.
Salt
The evaporation of sea water gives crude sodium chloride which contains ________________ as impurities.
sodium sulphate
calcium sulphate,
calcium chloride
All the above
.__________________ is an essential constituent of our food.
Calcium chloride.
.Sodium chloride.
Magnesium chloride.
Calcium and magnesium chlorides remain in solution because they are __________________ than sodium chloride.
more soluble.
less soluble.
not soluble.
The milky solution coming out of the carbonating tower contains ________________ as a fine suspension.
Sodium.
Carbonate.
Hydrogen.
Sodium hydrogen carbonate.
Sodium carbonate is prepared by _____________________.
Solvay process
Ammonia soda process.
Haber process.
Solvay process or Ammonia soda process
Sea watercontains_____________ of NaCl.
2.7-2.9%.
2.0-2.5%.
3.0-3.2%.
1.0-1.4%.
Ammonia gas is passed through ________________ brine solution in a saturating tank.
30%.
35%
40%.
45%.
In India,Sodium chloride is prepared by the evaporation of ___________________.
Sea water
Air.
