AIIMS 2019 Chemistry Limiting Reagent MCQ Question

In the given reaction, the limiting reagent is determined by comparing the ratio of available moles to their stoichiometric coefficients. The inequality $\frac{50}{N_a} > \frac{30}{N_a}$ indicates that reagent A is present in excess, while reagent B is the limiting reagent since it has the lower ratio when divided by its coefficient. Other options are not applicable as they do not pertain to the reagents involved in this reaction, thus reinforcing the understanding that identifying the limiting reagent is crucial for predicting the extent of the reaction and the amounts of products formed.