MCQOPTIONS
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MCQOPTIONS
This section includes 3 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. |
Acetic acid’s pKa is 4.2 and ammonium hydroxide pKb is 3.24. What is the pH of the ammonium acetate solution? |
| A. | 7.12 |
| B. | 7 |
| C. | 4.2 |
| D. | 7.48 |
| Answer» E. | |
| 2. |
Formic acid has a concentration of 0.1M and Ka is 1.77 x 10-4. What is the value of degree of dissociation? |
| A. | 4 |
| B. | 4.2 |
| C. | 0.42 |
| D. | 42 |
| Answer» C. 0.42 | |
| 3. |
What is the pKW at 298 k? |
| A. | 14 |
| B. | 7 |
| C. | 1 |
| D. | 0 |
| Answer» B. 7 | |