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Chemistry Medium FPSC PPSC NTS Uploaded: 14 Jul 2026

Which law states that matter can neither be created nor destroyed in a chemical reaction?

  • A Law of Definite Proportions
  • B Law of Multiple Proportions
  • C Law of Conservation of Mass
  • D Law of Combining Volumes
Correct Answer: Option C — Law of Conservation of Mass
Explanation:
The Law of Conservation of Mass proposed by Lavoisier states that the total mass of reactants equals the total mass of products in any chemical reaction.
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