1
COMEDK 2023 Evening Shift
MCQ (Single Correct Answer)
+1
-0
For a reaction of the type, $$2 \mathrm{X}+\mathrm{Y} \rightarrow \mathrm{A}+\mathrm{B}$$, the following is the data collected:
| Experiment | $$\mathrm{[X]}$$ | $$\mathrm{[Y]}$$ | Initial rate of formation of A |
|---|---|---|---|
| 1 | 0.2 | 0.2 | $$12.0\times10^{-3}$$ |
| 2 | 0.6 | 0.4 | $$\mathrm{14.4\times10^{-2}}$$ |
| 3 | 0.6 | 0.8 | $$5.76\times10^{-1}$$ |
| 4. | 0.8 | 0.2 | $$\mathrm{4.8\times10^{-2}}$$ |
What is the overall order of the reaction?
2
COMEDK 2023 Evening Shift
MCQ (Single Correct Answer)
+1
-0
Match the details given in Column I with those given in Column II
| S.No. | Column I | S.No. | Column II |
|---|---|---|---|
| A | For complex reactions order is determined by | P | Rate of reaction. |
| B | For Zero order reaction unit of $\mathrm{k}$ is same as that of | Q | Slope $$=k/2.303$$ |
| C | Mathematical expression which gives relationship between rate of reaction and concentrations of reactants is called | R | Slowest rate determining step. |
| D | For a first order reaction plot of $$\mathrm{\log \left[R_0\right] /[R]}$$ vs time gives | S | Rate law. |
3
COMEDK 2023 Evening Shift
MCQ (Single Correct Answer)
+1
-0
Given below are graphs showing the variation in velocity constant with temperature on Kelvin scale. Identify the graph which represents Arrhenius equation.
4
COMEDK 2023 Evening Shift
MCQ (Single Correct Answer)
+1
-0
The rate constant for a First order reaction at $$560 \mathrm{~K}$$ is $$1.5 \times 10^{-6}$$ per second. If the reaction is allowed to take place for 20 hours, what percentage of the initial concentration would have converted to products?
Questions Asked from Chemical Kinetics (MCQ (Single Correct Answer))
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