Pbco3 and ki are used in this preparation. Which one is the limiting reagent

The limiting reagent is PbCO3

Explanation

limiting reagent definition;

is the reagent that is totally consumed when a chemical reaction occurs completely

write a balanced chemical equation for the reaction

that is

PbCO3 + 2 Ki → PbI2 + K2CO3

from the equation above the b 1 mole of PbCO3 react with 2 moles of Ki

therefore PbCO3 is the limiting reagent since has less number of moles