Q21 of 270 Page 96

Why is sodium chloride required in our body?

Salt helps maintain the fluid in our blood cells and is used to transmit information in our nerves and muscles.it also helps in relaxation of muscles.


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19

Name the major salt present in sea- water.

 20

How is common salt obtained from sea-water?

 22

Name three chemicals made from common salt (or sodium chloride).

 23

Give any two uses of common salt (sodium chloride).