Check sibling questions

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

immobilized. Can the change in POP be reversed ?    



On drying of POP, a hard substance is formed by chemical change.This cannot be reversed again to form paste.So, it is an irreversible process.

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Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 13 years and a teacher from the past 17 years. He teaches Science, Economics, Accounting and English at Teachoo