Chemical Reactions and Equations Quiz for Class 10th
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Questions and Answers

In a chemical reaction, what is the substance that undergoes change known as?

  • Catalyst
  • Reactant (correct)
  • Solvent
  • Product

    • What is the law that states that mass can neither be created nor destroyed in a chemical reaction?

  • Law of Combining Volumes
  • Law of Conservation of Mass (correct)
  • Law of Multiple Proportions
  • Law of Definite Proportions

    • What is the term for a chemical reaction in which heat is evolved?

  • Exothermic reaction (correct)
  • Combination reaction
  • Endothermic reaction
  • Decomposition reaction

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