Chemistry 2002 JAMB Past Questions - Question 6: In the reaction E + F G + H, the backward reaction is favoured if the concentration of

Correct Answer

C

Explanation

The statement "the backward reaction is favored" typically implies that the equilibrium position has shifted toward the reactants. The direction in which a reaction is favored at equilibrium depends on the relative concentrations of the reactants and products and is described by Le Chatelier's Principle.

In the given reaction \(E + F \rightleftharpoons G + H\), if the concentration of \(G\) and \(H\) is higher than that of \(E\) and \(F\), the equilibrium position would shift to the left (towards the reactants). Conversely, if the concentrations of \(E\) and \(F\) are higher, the equilibrium position would shift to the right (towards the products).

Therefore, the backward reaction (\(E + F \rightarrow G + H\)) is favored when the concentrations of \(G\) and \(H\) are higher than those of \(E\) and \(F\).