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. |
What is the molar solubility product for V3(PO4)5 in terms of KSP? |
| A. | S = (KSP/84375)1/8 |
| B. | S = KSP1/8 |
| C. | S = (KSP/15)1/8 |
| D. | S = (KSP/108)1/8 |
| Answer» B. S = KSP1/8 | |
| 2. |
At NTP, the solubility of natural gas in water is 0.8 mole of gas/kg of water. What is the Henry’s law constant for natural gas? |
| A. | 8 kN/m2 |
| B. | 7.90 x 10-3 Pa |
| C. | 71.36 bar |
| D. | 105 mmHg |
| Answer» D. 105 mmHg | |
| 3. |
What is the concentration of N2 in a fresh water stream in equilibrium with air at 298 K and 1 atmosphere? Given the value of KH for N2 = 0.00060 mole/kgbar. |
| A. | 0.0474 g/kg |
| B. | 0.0005 g/kg |
| C. | 1316.7 g/kg |
| D. | 13.3 g/kg |
| Answer» E. | |
| 4. |
If, at 298 K water is the solvent, and Henry’s law constant for CO2 is 1.67 kbar and the constant of argon is 40.3 kbar, which of the following statements is true? |
| A. | Argon is more soluble than CO2 |
| B. | Argon is less soluble than CO2 |
| C. | Argon is insoluble in water |
| D. | Argon and CO2 are equally soluble |
| Answer» C. Argon is insoluble in water | |
| 5. |
When CO2 is introduced into aerated drinks and sealed, what is the nature of the graph between partial pressure of CO2 and its concentration in the drink? |
| A. | Exponentially increasing |
| B. | Positive slope |
| C. | Negative slope |
| D. | Constant |
| Answer» C. Negative slope | |
| 6. |
“The process of dissolution of solute in the solvent takes place even after saturation”. Is this true or false? |
| A. | True |
| B. | False |
| Answer» B. False | |