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प्रश्न
Boojho’s sister broke a white dove, a symbol of peace, made of Plaster of Paris (POP). Boojho tried to reconstruct the toy by making a powder of the broken pieces and then making a paste by mixing water. Will he be successful in his effort? Justify your answer.
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उत्तर
Boojho will not be successful because making of toy from Plaster of Paris (POP) is an irreversible change. Once the Plaster of Paris is mixed with water and dried it cannot regain its properties.
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संबंधित प्रश्न
Short Answer Type Question:
What is a chemical change? Explain with example.
A stretched rubber band comes back to normal shape. It is an example for ________.
Circle the odd one.
What are irreversible changes?
The blackening of the Silver anklet is a (an) ______.
Pick the change that can be reversed from the following.
Can we reverse the following change? If yes, suggest the name of the method.
Ice into water
A potter working on his wheel shaped a lump of clay into a pot. He then baked the pot in an oven. Do these two acts lead to the same kind of changes or different? Give your opinion and justify your answer.
Choose the odd one out. Give reason for your choice.
Find the odd one out. Give reason for your choice.
