1.23 In a reaction
Identify the limiting reagent, if any, in the following reaction mixtures.
(ii) 2 mol A + 3 mol B
Here according to the reaction 1 atom of A reacts with 1 molecule of B.
Therefore, 2 mol of A atoms will react with only 2 mol of B molecules, thereby left with 1 mole of B unreacted.
Hence, A is the limiting reagent in this reaction.