JAMB Chemistry Past Questions, Answers & Explanations - Chemistry

The following graph demonstrates the rate of reaction between calcium carbonate (marble)and dilute hydrochloric acid. The graph shows that the rate of reaction is initially greatest when

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A The initial slope of the curve is steepest and this occur when small pieces of marble are used and is due to a small surface area of reactant
B The occur when large pieces of marble are used and is due to a small surface area of reactant
C The initial slope of the curve is steepest and this occurs when small pieces of marble are used and is due to a large surface area of reactant
D The initial slope of the curve is steepest and this occur when large surface area of reactant
E The initial slope of the curve is least steep and this occur when small pieces of marble are used and is due to the increased surface area of the reactant

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