Question

216. Sodium chloride was used an important symbol in our freedom struggle. Mahatma Gandhi and his followers did Dandi march in order to stop the British government from increasing the price of common salt used daily by Indian people.

(d) What are the uses of common salt?

Answer 1

Uses of common salt

• Common salt (NaCl) is used in cooking food.
• It is used as a condiment and food preservative.
• It is used as a raw material in industries for making Sodium hydroxide, Sodium carbonate, Baking soda, etc.
• It is a major source of Sodium (Na) and Chlorine (Cl) that are further used as feedstocks for further chemical synthesis.
• It is used for melting ice by lowering the freezing point of the water.