ChemistryIs it true that paper tearing and glass breaking are physical changes which are not reversible?

Is it true that paper tearing and glass breaking are physical changes which are not reversible?


  1. A
    True
  2. B
    False 

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    Solution:

    The above statement is true.
    Physical changes are the changes in which no new substances are formed. In most physical changes, properties such as the substance's colour, shape, size, or physical form may change. The tearing of paper results in small pieces of paper, which cannot be reversed back to obtain a complete sheet of paper and the breaking of glass cannot be rectified to obtain the original glass.
      
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