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Setting of plaster of paris is...

Setting of plaster of paris is

A

Oxidation with atmospheric `CO_(2)`

B

Combination with atmospheric `CO_(2)`

C

Dehydration

D

Hydration to yield another

Text Solution

Verified by Experts

The correct Answer is:
D
Setting of plaster of paris is
`underset("orthorhombic")(CaSO_(4). (1)/(2) H_(2)O overset(H_(2)O)(rarr) CaSO_(4).2H_(2)O)underset("Mono orthorhombic Gypsum")( overset("Hardening")(rarr)CaSO_(4).2H_(2)O)`
The setting is due to formation of another hydrate
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Setting of plaster of Paris involves: (A) The oxidation with atmospheric oxygen (B) The removal of water to form anhydrous calcium sulphate (C) The hydration to form the orthorhombic form of gypsum (D) The reaction with atmospheric carbon dioxide gas

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Knowledge Check

  • Setting of plaster of paris involves:

    A
    The oxidation with atmosphere oxygen.
    B
    The removal of water to from anhydrous calcium sulphate
    C
    The hydration to form the orthorhombic ions of gas sum.
    D
    The reaction wit atmospheric carbon dioxide gas

  • Setting of plaster of paris involves:

    A
    The oxidation with atmosphere oxygen.
    B
    The removal of water to from anhydrous calcium sulphate
    C
    The hydration to form the orthorhombic ions of gas sum.
    D
    The reaction wit atmospheric carbon dioxide gas

  • Setting of plaster of Paris involves

    A
    the oxidation with atmospheric oxygen.
    B
    the removal of water to form anhydrous calcium sulphate.
    C
    the hydration to form the othorhombic form of gypsum.
    D
    the reaction with atmospheric carbon dioxide gas

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