Question

The rate equation for the reaction 2A + B $\to$ C is found to be a : r = k[A][B]. The correct statement in relation of this reaction is that the

• A. Rate of formation of C is twice the rate of disappearance of A
• B. $t_{\frac{1}{2}}$ is a constant
• C. Unit of k is $s^{-1}$
• D. Value of k is independent of the initial concentration of A and B

Answer 1

The correct option is D Value of k is independent of the initial concentration of A and B

The order of the reaction is two. Option (b) and (c) apply to first order reactions. Options (a) is wrong since the rate of formation of C is half the rate of disappearance of A. Option (d) is always true since value of k for any order is independent of the initial concentration of the reactants.