6. 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? A han of cement lying in the onen gets wet due to rain during the night. The
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Answer:
Change in POP can't be reversed.
Explanation:
it's change in chemical properties of POP.
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