Chemical Kinetics: NEET Chemistry Previous Year Questions

224 previous year questions from Chemical Kinetics. Here are the 25 most important ones; open any question for the correct answer and a full step-by-step solution.

1. $A \to product (First order reaction). Three sets of experiment were performed for a reaction under similar experimental conditions: Run 1 \Rightarrow 100 mL of 1\dots$
2. $The reaction 2 A \to 2 B + C has a rate constant of 1.2 \times 10^{- 2} s^{- 1} . Which of the following is correct?$
3. $2 A \to B + C It would be a zero order reaction when$
4. $For a reaction A + B ⟶ P, the following data are provided Entry [A] in M [B] in M Initial rate (M / s) 1 0.02\dots$
5. $Higher order (> 3) reactions are rare due to$
6. $For the reaction, 2 H_{2} (g) + 2 NO (g) \to N_{2} (g) + 2 H_{2} O (g) the observed rate expression is, rate\dots$
7. $Calculate the amount of reactant in percent that remains after 60 minutes involved in first order reaction (k = 0.02303) minute (^{- 1}) .$
8. $Calculate half life of first order reaction if rate constant of reaction is 2.772 \times 10^{- 3} s^{- 1} .$
9. $How enzymes increases the rate of reactions$
10. $The rate of a gaseous reaction is given by the expression, k [A] [B]^{2} . If the volume of vessel is reduced to one half of the initial vol\dots$
11. $Which of the following statements is in accordance with the Arrhenius equation?$
12. $For a reaction A + B \to C + D if the concentration of A is doubled without altering the concentration of B, the rate gets doubled. If the concentration of B is in\dots$
13. $The rate law for the decomposition of hydrogen iodide is - \frac{d [ HI ]}{dt} = k [HI]^{2} . The units of rate constant\dots$
14. $For a reaction scheme A k_{1} B k_{2} C, if the rate of formation of B is set to be zero then the concentration of B is given by :$
15. $Half-life period of a first order reaction is 10 min . Starting with initial concentration 12 M, the rate after 20 min is$
16. $Which one of the following statements for the order of a reaction is incorrect?$
17. $Decomposition of A is a first order reaction at T (K) and is given by A (g) ⟶ B (g) + C (g) . In a closed 1 L\dots$
18. $3 A ⟶ 2 B, rate of reaction, + \frac{d [ B ]}{dt} is equal$
19. $The addition of a catalyst during a chemical reaction alters which of the following quantities?$
20. $The plot of t_{1/2} v / s [R]_{0} for a reaction is a straight-line parallel to x -axis. The unit for the rate constant of this reaction is$
21. $For a reaction, the threshold energy is 75 kJ / mole . If the internal energy of the reactants is 20 kJ / mole, the activation energy (in kJ/mo\dots$
22. $The rate for reaction, A + B ⟶ product, is 1.8 \times 10^{- 2} mol dm^{- 3} s^{- 1} . Calculate the rate constant if the reaction is s\dots$
23. $For the reaction of H_{2} with I_{2} the rate constant is 2.5 \times 10^{- 4} d m^{3} mo l^{- 1} s^{- 1} at 327° C and\dots$
24. $The reaction 2 X \to B is a zeroth orer reaction. If the initial concentration of X is 0.2 M, the half-life is 6 h. When the initial concentration of X is 0.5 M, the tim\dots$
25. $Which one of the following is a second order reaction?$

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Chemical Kinetics: NEET Chemistry Previous Year Questions

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