MCQOPTIONS
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MCQOPTIONS
This section includes 6 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry Questions and Answers knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
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 | |
| 2. |
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 | |
| 3. |
What will happen If QC > KC? |
| A. | QC decreases till equilibrium |
| B. | QC increases till equilibrium |
| C. | QC remains constant |
| D. | cannot say |
| Answer» B. QC increases till equilibrium | |
| 4. |
For a reaction aA + bB → cC + dD, which is not in equilibrium the QC is given as __________ |
| A. | [A]a[B]b/[C]c[D]d |
| B. | [C]c[D]d/[A]a[B]b |
| C. | [A][B]/[C][D] |
| D. | [C][D]/[A][B] |
| Answer» C. [A][B]/[C][D] | |
| 5. |
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. | |
| 6. |
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 | |