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A thick coating of a paste of Plaster of Paris (POP) is applied over the bandage on a fractured bone.

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asked Jan 25, 2018 in Science by Rohit Singh (61,782 points) ● 35 ● 133 ● 354

A thick coating of a paste of Plaster of Paris (POP) is applied over the bandage on a fractured bone. It becomes hard on drying to keep the fractured bone immobilised. Can the change in POP be reversed?

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answered Jan 25, 2018 by sameer (82,980 points) ● 5 ● 11 ● 37
selected Jan 31, 2018 by sarthaks
 
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When water is added to POP, it undergoes a chemical change. Its composition changes and is converted into another substance. Since it is a chemical change, so it cannot be reversed.

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