Q. 5 B4.6( 36 Votes )

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Answer :

Washing soda (Na2CO3 10H2O) has a higher water content than the water vapour present in the atmosphere, therefore, it loses its hydrated part and become powdery. In other words, washing soda is efflorescent in nature.

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When you buy washKarnataka Board - Science Part II

Give reasons for Karnataka Board - Science Part II