Model plaster (white) used to cast study models before mixing with wat – McqOptions

MCQOPTIONS

1.	Model plaster (white) used to cast study models before mixing with water, is largely composed of____________?
A.	CaO
B.	CaCO3
C.	(CaSO4)2-½H2O
D.	CaSO4-2H2O
Answer» D. CaSO4-2H2O

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