Question

give reason-a crystal of washing soda change to white powder on exposed to air​

Answer 1

Chemical formula of washing soda is Na2CO3. 10 H2O

When sodium carbonate crystals are exposed to air, they lose water of crystallization and turn to white powder. This process of loosing water of crystallization when exposed to air is called 'efflorescence'.

Na2CO3 .10H2O → Na2CO3 + 10 H2O

When sodium carbonate crystals are exposed to air They lose water of crystallization and turn to white powder. ... When sodium carbonate crystals are exposed to air They lose water of crystallization and turn to white powder. This process of loosing water of crystallization when exposed to air is called efflorescence.

Answer 2

Answer:

yes

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