MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The graph shows the plot of \(\frac{1}{-r_A}\) versus conversion for an autocatalytic reactor. If a single reactor is to be employed to achieve a conversion of 0.5, then which of the following reactors will best suit the given condition? |
| A. | PFR |
| B. | Batch reactor |
| C. | CSTR |
| D. | Fluidised bed reactor |
| Answer» D. Fluidised bed reactor | |
| 2. |
The autocatalyst in microbial fermentation reactions is: |
| A. | Organic feed |
| B. | Microbes |
| C. | Enzyme |
| D. | Product chemical |
| Answer» C. Enzyme | |
| 3. |
The combination of reactors to achieve the required conversion for the autocatalytic reaction depicted below is _______ |
| A. | PFR followed by batch reactor |
| B. | CSTR followed by PFR |
| C. | PFR followed by CSTR |
| D. | Batch reactor followed by CSTR |
| Answer» C. PFR followed by CSTR | |
| 4. |
Which of the following reactors is used for carrying out autocatalytic reactions? |
| A. | CSTR |
| B. | PFR |
| C. | Batch reactor |
| D. | A combination of CSTR and PFR. |
| Answer» E. | |
| 5. |
If the area under the curve of \(\frac{1}{-r_A} \) versus XA for a PFR used to carry out an autocatalytic reaction is 5\((\frac{m^3 s}{mol}),\) then the ratio of change in volume to molar feed rate is ____ |
| A. | 5 |
| B. | 10 |
| C. | 15 |
| D. | 20 |
| Answer» C. 15 | |
| 6. |
An example of autocatalytic reaction is ____ |
| A. | Ammonia formation reaction |
| B. | Hydrogen peroxide decomposition reaction |
| C. | Reaction of permanganate with oxalic acid |
| D. | Oxidation of copper |
| Answer» D. Oxidation of copper | |
| 7. |
State true or false.Autocatalytic reactions are single order reactions. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
State true or false.An autocatalytic reaction is represented as A + R → R + R where, A is a reactant and R formed as the product catalyses the reaction. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 9. |
Autocatalytic reactions are the ones in which ____ |
| A. | One of the products poisons the catalyst |
| B. | There is no catalyst employed |
| C. | Only one reactant is involved |
| D. | One of the products catalyses the reaction |
| Answer» E. | |