What is washing soda? State two properties and two uses of washing soda.

Washing soda is sodium carbonate decahydrate. It can be obtained by recrystallisation of sodium carbonate.

Na2CO3 + 10 H2O Na2CO3.10 H2O


Two properties- (i) It is basic in nature. (ii) It is soluble in nature.


Uses - (i) Sodium carbonate (washing soda) is used in glass, soap and paper industries. (ii) Sodium carbonate can be used as a cleaning agent for domestic purposes. (iii) It is used for removing permanent hardness of water.


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