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Class 12 Chemistry Practice Test: Chemical Kinetics - Pseudo First Order Reaction
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Class 12 Chemistry Practice Test: Chemical Kinetics - Pseudo First Order Reaction
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10 Questions

1. Reactions whose molecularity is one but order is more than one are known as pseudo first-order reactions.
2. Acid hydrolysis of esters such as CH3COOC2H5 in aqueous solution is an example of a pseudo first-order reaction.
3. For the reaction C2H5COOC2H5 + H2O → C2H5COOH + C2H5OH, find the concentration of [C2H5COOC2H5] if the rate constant k=0.2 and the rate of the reaction is 0.39 s-1.
4. Which of the following is not an example of a pseudo first-order reaction?
5. Which of the following is not similar between a first order and pseudo first order reaction?
6. The rate law for inversion of cane sugar is R=k [C12H22O11][H2O]. Find the concentration of sucrose if the rate of the reaction is 0.032 s-1 and rate constant k=0.005.
7. Acid hydrolysis of esters such as CH3COOC2H5 in aqueous solution is an example of a pseudo first-order reaction.
8. What is the rate law of hydrolysis of CH3COOC2H5 in aqueous solution?
9. Which of the following is not similar between a first order and pseudo first order reaction?
10. The rate law for inversion of cane sugar is R=k [C12H22O11][H2O]. Find the concentration of sucrose if the rate of the reaction is 0.032 s-1 and rate constant k=0.005.

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