MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
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. |
| A. | 2.87 M |
| B. | 2.01 M |
| C. | 1.99 M |
| D. | 1.95 M |
| Answer» E. | |
| 2. |
What is the rate law of hydrolysis of CH3COOC2H5 in aqueous solution? |
| A. | R=k [CH3COOC2H5]2 |
| B. | R=k [CH3COOC2H5] |
| C. | R=k [CH3COOC2H5] [H2O] |
| D. | R=kk’ [CH3COOC2H5][H2O] |
| Answer» C. R=k [CH3COOC2H5] [H2O] | |
| 3. |
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. |
| A. | 5.8 M |
| B. | 6 M |
| C. | 6.2 M |
| D. | 6.4 M |
| Answer» E. | |
| 4. |
Acid hydrolysis of esters such as CH3COOC2H5 in aqueous solution is an example of a pseudo first-order reaction. |
| A. | True |
| B. | False |
| Answer» B. False | |