AIIMS 2018 Chemistry Reaction Quotient MCQ Question

When the reaction quotient $Q_c$ is less than the equilibrium constant $K_c$ ($Q_c < K_c$), it indicates that the concentration of products is lower than at equilibrium, prompting the reaction to shift towards the products to reach equilibrium. This shift increases the concentrations of $C$ and $D$ while decreasing $A$ and $B$. The other options are not applicable as they do not provide relevant information or alternatives regarding the relationship between $Q_c$ and $K_c$. Understanding this concept is crucial for predicting the direction of chemical reactions based on their equilibrium states.