Question

Which of the following Statements, about zero order reaction is not true?

• A. Its rate constant unit is ${{s}^{-1}}$
• B. The graph between time and rate of reaction is a straight line
• C. Rate of reaction is independent of concentration of reactants
• D. None of the above

Answer 1

Answer: (A)

Its rate constant unit is ${{s}^{-1}}$

Answer 2

Key Idea: For zero order reaction $r=k{{[conc]}^{o}}$ $\therefore$ Units of $k$ are $\text{mol}\,{{\text{L}}^{-1}}\,\text{tim}{{\text{e}}^{-1}}$ $\therefore$ The statement that unit of rate constant for zero order reaction is ${{s}^{-1}}$ is wrong. It is intact unit of k for first order reaction. The other statements are correct.