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Identify (A),(B) and (C )....


Identify `(A),(B)` and `(C )`.

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`underset("Gypsum")(CaSO_(4).2H_(2)O)overset(120^(@)C)(rarr)underset((A)"Plaster of paris")(CaSO_(4).(1)/(2)H_(2)O+(3)/(2)H_(2)O`
`CaSO_(4).2H_(2)Ooverset(200^(@)C)(rarr)underset("Death burnt plaster")underset((B))(CaSO_(4))+2H_(2)O`
`CaSO_(4)overset("Strong heating")(rarr)underset("Lime")underset((C ))(CaO+SO_(2)+O_(2))`
Hence, `(A)` is plaster of paris, `CaSO_(4).(1)/(2)H_(2)O,(B)` is dead burnt plaster, `CaSO_(4)` and `(C )` is lime, `CaO`.
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