Question

Point out the wrong statement : For a first order reaction

• A. Time for half-change $(t_{1/2})$ is independent of initial concentration
• B. Change in the concentration unit does not change the rate constant $(K)$
• C. Time for half-change $\times$ rate constant $= 0.693$
• D. The unit of $K$ is $mole^{- 1}\min^{- 1}{}$

Answer 1

Answer: (D)

The unit of $K$ is $mole^{- 1}\min^{- 1}{}$

Answer 2

Unit of K for I^st order reaction is $Time^{- 1}$.