List of top Chemistry Questions on Chemical Kinetics asked in NEET (UG)

C(s) + 2H$_2$(g) $\rightarrow$ CH$_4$(g); $\Delta H = -74.8 \, \text{kJ mol}^{-1}$
Which of the following diagrams gives an accurate representation of the above reaction?

If the rate constant of a reaction is 0.03 s$^{-1}$, how much time does it take for a 7.2 mol L$^{-1}$ concentration of the reactant to get reduced to 0.9 mol L$^{-1}$?
(Given: log 2 = 0.301)

Rate constants of a reaction at 500 K and 700 K are \(0.04 \, \text{s}^{-1}\) and \(0.14 \, \text{s}^{-1}\), respectively. Then, the activation energy of the reaction is:
{Given:} \[ \log 3.5 = 0.5441, \, R = 8.31 \, \text{J K}^{-1} \, \text{mol}^{-1} \]

Which of the following plot represents the variation of ln k versus \( \frac{1}{T} \) in accordance with the Arrhenius equation?

Following data is for a reaction between reactants A and B:

\[ \begin{array}{ccc} 2 \times 10^{-3} & 0.1 \, \text{M} & 0.1 \, \text{M} \\ 4 \times 10^{-3} & 0.2 \, \text{M} & 0.1 \, \text{M} \\ 1.6 \times 10^{-2} & 0.2 \, \text{M} & 0.2 \, \text{M} \\ \end{array} \]
The order of the reaction with respect to A and B, respectively, are: