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Chemistry
Setting of plaster of Paris involves
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Q. Setting of plaster of Paris involves
The s-Block Elements
A
the oxidation with atmospheric oxygen.
4%
B
the removal of water to form anhydrous calcium sulphate.
53%
C
the hydration to form the orthorhombic form of gypsum.
43%
D
the reaction with atmospheric carbon dioxide gas
0%
Solution:
$2\, CaSO_{4}.H_{2}O \xrightarrow[+H_2O]{\text{Setting}} \underset{\text{(orthorhombic gypsum)}}{CaSO_{4}.2H_{2}O}$