1.23 In a reaction
Identify the limiting reagent, if any, in the following reaction mixtures.
(v) 2.5 mol A + 5 mol B
Here according to the reaction 1 atom of A reacts with 1 molecule of B.
Therefore, 2.5 moles of A atoms will react with only 2.5 moles of B molecules, thereby left with 2.5 moles of B unreacted.
Hence, A limiting reagent in this reaction.