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. |
How many moles of nitric acid is required to convert 1 mole of sulfur to sulfuric acid? |
| A. | 10 |
| B. | 4 |
| C. | 48 |
| D. | 20 |
| Answer» D. 20 | |
| 2. |
Which reagent is predominantly used in pickling of stainless steel? |
| A. | Iodic acid |
| B. | Nitric acid |
| C. | Phosphoric acid |
| D. | Sulfuric acid |
| Answer» C. Phosphoric acid | |
| 3. |
What product(s) is/are formed when aluminum metal is treated with concentrated nitric acid? |
| A. | Al (NO<sub>3</sub>) <sub>3</sub> |
| B. | Al (NO<sub>2</sub>) <sub>3</sub> + H<sub>2</sub> |
| C. | Al<sub>2</sub>O<sub>3</sub> |
| D. | Al<sub>4</sub>O<sub>3</sub> |
| Answer» D. Al<sub>4</sub>O<sub>3</sub> | |
| 4. |
Which of these gases is released upon treating zinc with diluted and then concentrated nitric acid? |
| A. | Nitrogen dioxide and nitrous oxide |
| B. | Nitric oxide and nitrous oxide |
| C. | Nitrous oxide and nitrogen dioxide |
| D. | Nitrous oxide and nitric oxide |
| Answer» D. Nitrous oxide and nitric oxide | |
| 5. |
What is the nitric acid water composition by mass, respectively, for the components to form an azeotrope? |
| A. | 70% 30% |
| B. | 68% 32% |
| C. | 30% 70% |
| D. | 32% 68% |
| Answer» C. 30% 70% | |
| 6. |
What is the catalyst used in the industrial manufacture of nitric acid? |
| A. | Powdered iron (III) oxide |
| B. | Vanadium (V) oxide |
| C. | Zinc-mercury amalgam |
| D. | Platinum-Rhodium gauze sheet |
| Answer» E. | |
| 7. |
What is the name of the industrial process to manufacture nitric acid? |
| A. | Contact process |
| B. | Haber-Bosch process |
| C. | Solvay process |
| D. | Ostwald s process |
| Answer» E. | |
| 8. |
Which of the following reactions best represents lab scale preparation of nitric acid? |
| A. | 3HNO<sub>2</sub> HNO<sub>3</sub> + H<sub>2</sub>O + 2NO |
| B. | NO<sub>2</sub> + O<sub>2</sub> NO<sub>3</sub> |
| C. | NaNO<sub>3</sub> + H<sub>2</sub>SO<sub>4</sub> NaHSO<sub>4</sub> + HNO<sub>3</sub> |
| D. | 3NO<sub>2</sub> + H<sub>2</sub>O 2HNO<sub>3</sub> + NO |
| Answer» D. 3NO<sub>2</sub> + H<sub>2</sub>O 2HNO<sub>3</sub> + NO | |
| 9. |
Which of the following is true regarding nitric acid? |
| A. | It is a strong reducing agent |
| B. | It is a weak oxidizing agent |
| C. | Its basicity is unity |
| D. | It is non-planar in gaseous state |
| Answer» C. Its basicity is unity | |
| 10. |
Which of the following is not an oxo-acid of nitrogen? |
| A. | Hyponitric acid |
| B. | Hyponitrous acid |
| C. | Nitrous acid |
| D. | Nitric acid |
| Answer» B. Hyponitrous acid | |