Chemical Reactions and Equations Quiz for Class 10
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Questions and Answers

What is the chemical symbol for the element with atomic number 10?

  • Ne (correct)
  • Ar
  • He
  • Kr

    • In a chemical reaction, what is the term for the substances that are formed as a result of the reaction?

  • Reactants
  • Precipitates
  • Catalysts
  • Products (correct)

    • What is the balanced chemical equation for the reaction between sodium and water?

  • 2Na + 2H2O → 2NaOH + H2 (correct)
  • Na + H2O → NaOH + H
  • Na + 2H2O → NaOH + H2
  • 2Na + H2O → Na2O + H2

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