MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Chemical Reaction Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The unit of frequency factor in Arrhenius equation is ____ |
| A. | ( frac{mol}{m^3} ) |
| B. | Same as that of rate constant |
| C. | ( frac{mol}{m^3 s} ) |
| D. | mol |
| Answer» C. ( frac{mol}{m^3 s} ) | |
| 2. |
Which of the following is true about elementary reactions? |
| A. | They occur in multiple steps |
| B. | They are complex in nature |
| C. | Order of elementary reaction is an integer |
| D. | All first order reactions are elementary |
| Answer» D. All first order reactions are elementary | |
| 3. |
The number of molecules involved in an elementary reaction is termed as ____ |
| A. | Molecularity |
| B. | Order of reaction |
| C. | Unimolecular reaction |
| D. | Rate of reaction |
| Answer» B. Order of reaction | |
| 4. |
The rate expression for a homogeneous reaction comprises of ____ |
| A. | A concentration dependent term only |
| B. | A temperature dependent term only |
| C. | A concentration dependent term and a temperature dependent term |
| D. | A catalyst weight dependent term |
| Answer» D. A catalyst weight dependent term | |
| 5. |
Order of a reaction is ____ |
| A. | Number of molecules of reactants taking part in the reaction |
| B. | Power of any one of the reactant concentrations |
| C. | Concentration of intermediate species formed |
| D. | Sum of the powers of the concentrations of all the reactants |
| Answer» E. | |
| 6. |
The rate of a reaction cannot be expressed in terms of ____ |
| A. | Volume of reacting fluid |
| B. | Volume of solid |
| C. | Amount of product |
| D. | Interfacial surface |
| Answer» D. Interfacial surface | |
| 7. |
For the reaction aA+ bB rR, which of the following is true? |
| A. | ( frac{-r_A}{a} )= ( frac{-r_B}{b} ) ( frac{r_R}{r} ) |
| B. | ( frac{-r_A}{a} ) ( frac{-r_B}{b} ) ( frac{r_R}{r} ) |
| C. | ( frac{-r_A}{a} )= ( frac{-r_B}{b} ) ( frac{r_R}{r} ) |
| D. | ( frac{-r_A}{a} ) ( frac{-r_B}{b} ) ( frac{r_R}{r} ) |
| Answer» D. ( frac{-r_A}{a} ) ( frac{-r_B}{b} ) ( frac{r_R}{r} ) | |
| 8. |
The rate of cellular reactions expressed as moles A disappearing/(m3.s) is in the range of ____ |
| A. | 10<sup>-3</sup>-10<sup>-4</sup> |
| B. | 10<sup>2</sup> |
| C. | 0.1 |
| D. | 10<sup>9</sup> |
| Answer» B. 10<sup>2</sup> | |
| 9. |
Which of the following is the correct expression for the rate of a reaction? |
| A. | ( frac{Moles , of , product , formed}{Volume , of , fluid Time} ) |
| B. | ( frac{Moles , of , reactant , initially , taken}{Volume , of , fluid Time} ) |
| C. | ( frac{Moles , unreacted}{Volume , of , fluid Time} ) |
| D. | ( frac{Moles , of , product , formed}{Volume , of , fluid} ) |
| Answer» B. ( frac{Moles , of , reactant , initially , taken}{Volume , of , fluid Time} ) | |
| 10. |
The factors affecting the rate of homogeneous reaction are ____ |
| A. | Temperature only |
| B. | Pressure only |
| C. | Reactant Concentration only |
| D. | Temperature, pressure and reactant concentration |
| Answer» E. | |