Chemical Kinetics questions
1373 published questions with worked solutions.
- The initial concentration of both the reactants of a second order reaction are equal and 60% of the reaction gets completed in 30...
- Hydrolysis of an alkyl halide (RX) by dilute alkali [OH^-] takes place simultaneously by S_N2 and S_N1 pathway. A plot of - 1...
- In the case of a first order reaction, the time required for 93.75% of reaction to take place is x times that required for half...
- Following are two first order reactions with their half times given at 25°C: A t_ 1/2 =30 ,min Products; B t_ 1/2 =40 ,min...
- A second order reaction requires 70 min to change the concentration of reactants from 0.08 M to 0.01 M. The time required to...
- The rate of chemical reaction (except zero order):
- The term (-dc/dt) in rate equation refers to:
- In the reaction; A+2B 3C+D, which of the following expressions does not describe changes in the concentration of various species...
- Two reactions A and B have rate constants K_A and K_B at temperature T and activation energies E_A and E_B respectively. If...
- The temperature coefficient of a reaction is:
- The rate law of the reaction, A+2B . Product is given by d[P] dt =K[A]^2 [B]. If A is taken in large excess, the order of the...
- The rate constant K_1 of a reaction is found to be double that of rate constant K_2 of another reaction. The relationship between...
- According to collision theory of reaction rates:
- For a certain reaction a plot of c_0-c c against time t, yields a straight line. c_0 and c are concentrations of reactant at t=0...
- For the reaction A B, the rate law is; rate =K[A]. Which of the following statements is incorrect?
- The threshold energy of a chemical reaction depends upon:
- The ionic reactions are usually very fast because:
- Which one of the following statements for the order of a reaction is incorrect?
- Which of the following statement is correct for a reaction X+2Y ?
- A zero order reaction is one:
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