A hydrated solid on heating initially gives a monohydrated compound upon heating above leads to an anhydrous white powder and , respectively , are :
Washing soda and soda ash.
Baking soda and dead burnt plaster .
Washing soda and dead burnt plaster.
Baking soda and soda ash.
Washing soda and soda ash.
Option 2)Baking soda and dead burnt plaster .
Option 3)Washing soda and dead burnt plaster.
Option 4)Baking soda and soda ash.
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