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Question

How would you show that setting of curd is a chemical change?


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Solution

Chemical Change

  • A chemical change is one in which the chemical properties of a substance changes.
  • In chemical change there is either formation or breaking of atomic bonds at the molecular level.
  • Chemical change is irreversible.

Setting of curd is a Chemical Change

  • The setting of curd is a chemical change.
  • In setting of curd there is formation of a new substance,lactic acid from the lactose present in milk.
  • The curd that results after the chemical change has different flavor from the original substance milk.
  • Once there is formation of the curd, milk cannot be extracted from it.
  • It’s a change that can’t be reversed.

Hence, Setting of curd is a chemical change.


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