MCQOPTIONS
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MCQOPTIONS
This section includes 657 Mcqs, each offering curated multiple-choice questions to sharpen your Testing Subject knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which of the following is also referred to as ‘Marshall’s acid’? |
| A. | HO3SOOSO3H |
| B. | HO3SOSO3H |
| C. | HO3SSO3H |
| D. | HO3SSO2H |
| Answer» B. HO3SOSO3H | |
| 2. |
In the 17th century, Johann Glauber first prepared sulfuric acid by burning sulfur with potassium nitrate with steam. A famous salt was then called to be Glauber’s salt. Which of the following is it? |
| A. | Potassium nitrate |
| B. | Potassium sulfate |
| C. | Sodium sulfate |
| D. | Potassium hydroxide |
| Answer» D. Potassium hydroxide | |
| 3. |
In the contact process, SO2 is passed twice through the catalytic converted. Why? |
| A. | To produce less while converting to SO3 |
| B. | Since the energy and power consumed is less |
| C. | To increase the yield |
| D. | To avoid choking hazards |
| Answer» D. To avoid choking hazards | |