Question

Which of the following statement is incorrect?

• A. All natural radioactive processes follow first order kinetics.
• B. Thermal decomposition of HI on gold surface is a zero-order reaction.
• C. Decomposition of hydrogen peroxide catalysed by iodide in an alkaline medium is a first order reaction.
• D. The unit of second order rate constant is mol$^{-1}$L s$^{-1}$.
• E. The experimental rate expression of the reaction CHCl$_3$ + Cl$_2 \rightarrow$ CCl$_4$ + HCl is, Rate $=k[$CHCl$_3][$Cl$_2]$

Hint:

Chemistry Tip: Never assume rate law from balanced equation unless reaction is explicitly elementary.

Answer 1

Answer: (E)