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plaster of paris

Irreversible Changes

Posted on June 18, 2018 by Mrs Shilpi Nagpal

Question 1 What are irreversible changes? Question 2 Give few examples of irreversible changes? Question 3 Milk can be changed into curd but curd cannot be changed back into milk. What is the name of the change? Question 4 Burning of paper is an irreversible change. Explain ? Question 5 When water is mixed with POP and allowed to dry, it sets into a hard mass. … [Read more...] about Irreversible Changes

Plaster of Paris

Posted on July 21, 2016 by Mrs Shilpi Nagpal

plaster of paris class 10

Question 1 Write the chemical formula and name of plaster of paris?  Question 2 What is gypsum?  Question 3 Name the calcium compound which hardens on wetting with water?  Question 4 What will happen if heating is not controlled while preparing plaster of paris?  Question 5 Name the compound which is used in hospitals for setting fracture bones?  Question 6 How … [Read more...] about Plaster of Paris

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