In the reaction `A+B hArr C+D` , What will happen to the equilibrium if concentration of A is increased ?

Explanation

To solve the question regarding the effect of increasing the concentration of A in the equilibrium reaction \( A + B \rightleftharpoons C + D \), we will apply Le Chatelier's principle.

### Step-by-Step Solution:

1. **Identify the Reaction**: The given reaction is:
\[ A + B \rightleftharpoons C + D \]
...