how are useful substances obtained from common salt?
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Answer:
The various salts obtained from common salt are sodium hydroxide, baking soda, washing soda, bleaching powder and many more.
Common salt is sodium chloride. Its molecular formula is NaCl Sodium chloride is the main ingredient in our food. It is added to our food for taste and as a preservative.
Sodium chloride is the main ingredient in our food. It is added to our food for taste and as a preservative.We can obtain the following four chemicals from common salt. In the chlor alkali process, sodium hydroxide is prepared from common salt (sodium chloride). The byproducts are hydrogen gas and chlorine gas.Electrolysis of aqueous sodium chloride (brine solution) in Castner-kellner cell gives sodium hydroxide, chlorine gas and hydrogen gas. In the Solvay process, limestone (calcium carbonate) ammonia, carbon dioxide and cold saturated aqueous sodium chloride solution produces sodium carbonate, sodium hydrogen carbonate and calcium chloride. Chlorine gas (obtained from chlor alkali process) reacts with dry slaked lime (calcium hydroxide) to form bleaching powder.
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