A WHITE POWDERY SUBSTANCE 'X' IMMEDIATELY SETS INTO HARD MASS ON ADDING A LIQUID 'Y' TO IT . IN HOSPITALS A THICK COAT OF THE PASTE OF THE SUBSTANCE X IS APPLIED OVER THE BANDAGE ON THE FRACTURED BONE OF A PATIENT TO KEEP THE FRACTURED BONE IN PLACE TO GET JOINED PROPERLY.WHAT COULD BE SUBSTANCE X AND Y . WHAT TYPE OF CHANGE OCCURS IN X ON ADDING Y?????
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calcium sulphate hemihydrate (CaSO4.1/2H2O) this is called plaster of paris the substance which doctor use as plaster for supporting fracture bone on right position POP is white powder and on mixing with water , it change to gypsum once again giving a hard solid
CaSO4.1/2H2O +1+1/2H2O→ CaSO4. 2H2O
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Answer:
calcium sulphate hemihydrate
Explanation:
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