Which of the following will react the fastest with 25cm3 of 0.1moldm−3HCl at room temperature?13g of Mg powder23g of Mg strip33g of Mg granules123Clear selection
Q. Which of the following will react the fastest with 25cm3 of 0.1moldm−3HCl at room temperature?13g of Mg powder23g of Mg strip33g of Mg granules123Clear selection
Rate of Reaction Dependence: We know that the rate of reaction depends on the surface area of the reactants; the greater the surface area, the faster the reaction.
Surface Area Comparison: Mg powder has the highest surface area compared to Mg strip and Mg granules because the particles are smaller.
Fastest Reacting Substance: So, Mg powder will react the fastest with the HCl solution.