Question

Consider the following hypothetical reaction. $A+B \rightleftharpoons C+D ; \,\,\,K_{c}=1 \times 10^{-4}$ Which of the following statements is true for this reaction ? In this reaction,

• A. products predominate
• B. reactants predominate
• C. equilibrium exists
• D. nothing can be said

Answer 1

Answer: (B)

reactants predominate

Answer 2

For the given reaction, the value of $K_{c}$ is very low, ie, $10^{-4}$. If the value of $K_{c}$ is less than $10^{-3}$, no reaction takes place and reactants predominates over products. The same takes place in the given reaction.