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Problem
Plaster of Paris when mixed with the correct amount of water sets into a solid mass due to the formation of : a.
CaSO
4
\text{CaSO}_4
CaSO
4
b.
(
CaSO
4
)
2
⋅
H
2
O
(\text{CaSO}_4)_2 \cdot \text{H}_2\text{O}
(
CaSO
4
)
2
⋅
H
2
O
c.
CaSO
4
⋅
2
H
2
O
\text{CaSO}_4 \cdot 2\text{H}_2\text{O}
CaSO
4
⋅
2
H
2
O
d.
CaO
\text{CaO}
CaO
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