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. |
WHat is the expression of KC of the chemical equation Ag2O(s) + 2HNO3(aq) ( rightleftharpoons ) 2AgNO3(aq) +H2O(l)? |
| A. | [AgNO<sub>3(aq)</sub>]<sup>2</sup>/[HNO<sub>3(aq)</sub>]<sup>2</sup> |
| B. | [AgNO<sub>3(aq)</sub>]/[HNO<sub>3(aq)</sub>]<sup>2</sup> |
| C. | [AgNO<sub>3(aq)</sub>]<sup>2</sup>/[HNO<sub>3(aq)</sub>] |
| D. | [AgNO<sub>(aq)</sub>]<sup>2</sup>/[HNO<sub>3(aq)</sub>]<sup>2</sup> |
| Answer» B. [AgNO<sub>3(aq)</sub>]/[HNO<sub>3(aq)</sub>]<sup>2</sup> | |
| 2. |
CO2(g) + C(s) ( rightleftharpoons ) 2CO(g) is an example of _____________ |
| A. | homogeneous equilibrium |
| B. | heterogeneous equilibrium |
| C. | neither homogeneous nor heterogeneous |
| D. | both homogeneous and heterogeneous |
| Answer» C. neither homogeneous nor heterogeneous | |
| 3. |
If KC of a reaction N2(g) + O2(g) ( rightleftharpoons ) 2NO(g) is 2 x 10-3, then what is the KP? |
| A. | 4 x 10<sup>-3</sup> |
| B. | 1 x 10<sup>-3</sup> |
| C. | 3 x 10<sup>-3</sup> |
| D. | 2 x 10<sup>-3</sup> |
| Answer» E. | |
| 4. |
What is the relation between KP and KC? |
| A. | K<sub>C</sub> = K<sub>P</sub> |
| B. | K<sub>C</sub> = K<sub>P</sub>(RT) |
| C. | K<sub>C</sub> = K<sub>P</sub>(RT)<sup> ng</sup> |
| D. | K<sub>P</sub> = K<sub>C</sub>(RT)<sup> ng</sup> |
| Answer» D. K<sub>P</sub> = K<sub>C</sub>(RT)<sup> ng</sup> | |
| 5. |
For the following equation, 2HBr(g) ( rightleftharpoons ) H2(g) + Br2(g); are both KP and KC are equal? |
| A. | yes |
| B. | cannot say |
| C. | no |
| D. | depends on the temperature |
| Answer» B. cannot say | |
| 6. |
At constant temperature, the pressure is directly proportional to the concentration of the gas. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 7. |
Write pressure in terms of concentration and temperature. |
| A. | P = CRT |
| B. | P = nrt |
| C. | p = CT |
| D. | C = PT |
| Answer» B. P = nrt | |
| 8. |
Br2(l) ( rightleftharpoons ) Br2(g) is in ________ |
| A. | homogeneous equilibrium |
| B. | not in both Homogeneous and heterogeneous equilibrium |
| C. | cannot say |
| D. | may or may not be in Homogeneous equilibrium |
| Answer» C. cannot say | |
| 9. |
The units of KP and KC are equal. |
| A. | true |
| B. | false |
| Answer» C. | |
| 10. |
The equilibrium N2(g) + O2(g) ( rightleftharpoons ) 2NO(g), is an example of _____________ |
| A. | homogeneous chemical equilibrium |
| B. | heterogeneous chemical equilibrium |
| C. | neither homogeneous nor heterogeneous |
| D. | both homogeneous and heterogeneous |
| Answer» B. heterogeneous chemical equilibrium | |