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. |
Equilibrium constant depends on the temperature. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 2. |
What do you understand from the reaction if reaction quotient is 2 and the equilibrium constant is 3? |
| A. | the equilibrium constant increases |
| B. | the equilibrium constant decreases |
| C. | the equilibrium constant remains the same |
| D. | reaction quotient increases |
| Answer» E. | |
| 3. |
If [H2]t=0.10 M, [I2]t = 0.20 M and [HI]t = 0.40 M, in the reaction H2(g) + I2(g) ( rightleftharpoons ) 2HI(g), what is the value of QC? |
| A. | 8 |
| B. | 4 |
| C. | 2 |
| D. | 1 |
| Answer» B. 4 | |
| 4. |
What do you think will happen if reaction quotient is smaller than the equilibrium constant? |
| A. | equilibrium constant will change |
| B. | reaction quotient remains constant |
| C. | reaction quotient increases continuously |
| D. | reaction quotient increases till K<sub>C</sub> |
| Answer» E. | |
| 5. |
At equilibrium, KC is _______________ |
| A. | greater than reaction quotient |
| B. | equal to the reaction quotient |
| C. | less than the reaction question |
| D. | independent of reaction question |
| Answer» C. less than the reaction question | |
| 6. |
What will happen If QC > KC? |
| A. | Q<sub>C</sub> decreases till equilibrium |
| B. | Q<sub>C</sub> increases till equilibrium |
| C. | Q<sub>C</sub> remains constant |
| D. | cannot say |
| Answer» B. Q<sub>C</sub> increases till equilibrium | |
| 7. |
For a reaction aA + bB cC + dD, which is not in equilibrium the QC is given as __________ |
| A. | [A]<sup>a</sup>[B]<sup>b</sup>/[C]<sup>c</sup>[D]<sup>d</sup> |
| B. | [C]<sup>c</sup>[D]<sup>d</sup>/[A]<sup>a</sup>[B]<sup>b</sup> |
| C. | [A][B]/[C][D] |
| D. | [C][D]/[A][B] |
| Answer» C. [A][B]/[C][D] | |
| 8. |
Reaction quotient is depicted by this symbol __________ |
| A. | K |
| B. | Q<sub>C</sub> |
| C. | R |
| D. | q |
| Answer» C. R | |
| 9. |
What will happen if KC > 10-3 in a chemical reaction? |
| A. | products are predominant |
| B. | reactants are predominant |
| C. | equilibrium |
| D. | dynamic equilibrium |
| Answer» E. | |
| 10. |
If KC > 10x, the products predominate over reactants. Then what is the value of x? |
| A. | 2 |
| B. | 3 |
| C. | 4 |
| D. | 1 |
| Answer» C. 4 | |