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Chemistry · May / June 2022 · Paper 11 · Question 19

5070Exothermic and endothermic reactions

The diagram shows a titration experiment. [diagram: burette labelled 'dilute acid' above a conical flask labelled 'aqueous alkali'] Which row about the reaction in the conical flask is correct?

  1. Athe reaction is endothermic; the value of ΔH is negative
  2. Bthe reaction is endothermic; the value of ΔH is positive
  3. Cthe reaction is exothermic; the value of ΔH is negative
  4. Dthe reaction is exothermic; the value of ΔH is positive

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Correct answer: C. the reaction is exothermic; the value of ΔH is negative

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