MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
When solid sugar dissolves in the solution __________ equilibrium is attained. |
| A. | liquid vapor |
| B. | solid liquid |
| C. | solid vapor |
| D. | no |
| Answer» C. solid vapor | |
| 2. |
Select the correct equilibrium involving physical equilibrium. |
| A. | it is possible only in a closed system at a given temperature |
| B. | both forward and backward does not occur at the same rate |
| C. | there is a dynamic but an unstable condition |
| D. | measurable properties of the system do not remain constant |
| Answer» B. both forward and backward does not occur at the same rate | |
| 3. |
The equilibrium in a chemical reaction is represented by the symbol ____________ |
| A. | |
| B. | ( Leftarrow ) |
| C. | ( rightleftharpoons ) |
| D. | |
| Answer» D. | |
| 4. |
What will happen if the rate of evaporation is equal to the rate of condensation in the water? |
| A. | solid-liquid equilibrium |
| B. | liquid-vapor equilibrium |
| C. | solid-vapor equilibrium |
| D. | melting |
| Answer» C. solid-vapor equilibrium | |
| 5. |
Which of the following statements is false regarding the equilibrium constant? |
| A. | it has a definite value for every chemical reaction at a particular temperature |
| B. | it is independent of initial concentrations of the reactants |
| C. | it is dependent on the presence of a catalyst |
| D. | if K is the equilibrium constant for a backward reaction then the forward reaction s equilibrium constant is 1/k |
| Answer» D. if K is the equilibrium constant for a backward reaction then the forward reaction s equilibrium constant is 1/k | |
| 6. |
Amount of a gas that is dissolved in a solvent depends on the pressure of the solvent. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
Which of the following is an example of solid-liquid equilibrium? |
| A. | water and steam at hundred degrees centigrade |
| B. | water and ice at 0-degree centigrade |
| C. | the point where Ammonia is sublimized |
| D. | boiling point of water |
| Answer» C. the point where Ammonia is sublimized | |
| 8. |
Which of the following characteristics of chemical equilibrium is true? |
| A. | equilibrium is dynamic in nature |
| B. | equilibrium cannot be attained from either side |
| C. | equilibrium cannot be obtained in a closed container |
| D. | equilibrium state is affected by the presence of a catalyst |
| Answer» B. equilibrium cannot be attained from either side | |
| 9. |
Physical equilibrium is the same as the chemical equilibrium. |
| A. | true |
| B. | false |
| Answer» C. | |
| 10. |
If both the forward and reverse reaction rates are equal in the equilibrium is said to be ____________ |
| A. | dynamic equilibrium |
| B. | equilibrium mixture |
| C. | static equilibrium |
| D. | newton equilibrium |
| Answer» B. equilibrium mixture | |