Question

Write the chemical name and formula of common salt. List two main sources of common salt in nature. Write any three uses of common salt. How is it connected to our struggle for freedom ?
(2015)​

Answer 1

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$\implies$Chemical name Of Common Salt :

• Sodium Chloride

$\implies$Formulae Of Common Salt :

• NaCl

$\implies$Two Main sources of Common Salt in nature :

1. Sea water
2. Rock Salt

$\implies$Three uses of Common Salt :

1. It is used in cooking food.
2. It is used to melt ice.
3. It is used as preservatives in pickles.

$\implies$Salt was recorgnised as an important symbol in our struggle for freedom due to Dandi March Movement. As the britishers charged tax for the salt, then Gandhiji decided to start this movement so that people can make their own salt.

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Answer 2

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★ Chemical name : Sodium chloride

★ Chemical formula : NaCl

★ Sources : Common salt (NaCl) can be obatined mainly from two sources :-

1. From sea water

2. From rock salt

★ Uses of common salt :

• Common salt is used as a raw material for many useful chemicals.

• It is an essential kitchen ingredient and is used in cooking many food items.

• It is used as a preservative (in pickles).

• Common salt is used in the manufacturing of soap.

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Common salt has a very important connection to our freedom struggle. Mahatma Gandhi's Dandi March (salt march) was for the procurement of common salt for common man as it is the most essential product of dajly use. This marked the beginning of civil disobedience movement which became a crucial element of our freedom struggle.