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प्र: Which of the following is not a pure substance?

  • 1
    Oxygen
  • 2
    Carbon dioxide
  • 3
    Water
  • 4
    Milk
  • उत्तर देखें
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उत्तर : 4. "Milk"
व्याख्या :

Answer: D) Milk Explanation: Milk is not a pure substance since it has so many constituents that can be separated physically. Compounds are pure substances formed from elements unlike mixtures.

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