MCQOPTIONS
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MCQOPTIONS
This section includes 10 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 mlecularity of the following single step reaction is ___________aA + bB → pP |
| A. | a+b-p |
| B. | a+b+p |
| C. | a+b |
| D. | a-p |
| Answer» D. a-p | |
| 2. |
The rate constant for a first order reaction depends on _____________ |
| A. | Pressure |
| B. | Temperature |
| C. | Concentration |
| D. | Time |
| Answer» C. Concentration | |
| 3. |
Reaction corresponding to stoichiometric equation is called __________ |
| A. | Non-elementary |
| B. | Elementary |
| C. | Heterogeneous |
| D. | Homogeneous |
| Answer» C. Heterogeneous | |
| 4. |
The overall reaction order for A + B → C + D is two. It implies that ______ |
| A. | reaction may be non-elementary and molecularity is two |
| B. | reaction may be elementary and molecularity is two |
| C. | reaction is non-elementary and molecularity is two |
| D. | reaction is elementary and molecularity is two |
| Answer» E. | |
| 5. |
The unit for concentration equilibrium constant for the following reaction is _________2A + 9B ←→7C + 4D |
| A. | \((\frac{mol}{dm^3})\)2 |
| B. | \((\frac{mol}{dm^3})\)9 |
| C. | \((\frac{mol}{dm^3})\)-4 |
| D. | \((\frac{mol}{dm^3})\)-3 |
| Answer» E. | |
| 6. |
The units of rate constant of nth order is ___________ |
| A. | time-1 |
| B. | concentration(n-1) |
| C. | time-1 concentration(1-n) |
| D. | time-1 concentration(n-1) |
| Answer» D. time-1 concentration(n-1) | |
| 7. |
What is the relative rate of reaction for the given reaction.2A + 9B → 7C + 4D |
| A. | –rA = -9rB=7rC=–4rD |
| B. | –rA =-rB/9=rC/7=rD/4 |
| C. | –rA =-rB/9=7rC=4rD |
| D. | –rA = 9rB=-7rC=–4rD |
| Answer» C. –rA =-rB/9=7rC=4rD | |
| 8. |
The overall order of reaction for –rA = kCA0.7CB1.3 is _______ |
| A. | 0 |
| B. | 1 |
| C. | 2 |
| D. | 3 |
| Answer» D. 3 | |
| 9. |
Molecularity is ___________ value and order is ___________ value. |
| A. | an integer, a fractional |
| B. | a fractional, an integer |
| C. | both fractional |
| D. | both integers |
| Answer» B. a fractional, an integer | |
| 10. |
Molecularity refers to an elementary reaction. |
| A. | True |
| B. | False |
| Answer» B. False | |