MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Hazardous Waste Management knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The environmental issue caused by chemical precipitation is _________ |
| A. | Chemical silt |
| B. | Salts |
| C. | Liquid matter |
| D. | Degradation |
| Answer» B. Salts | |
| 2. |
Chemical precipitation treatment is user economic. |
| A. | True |
| B. | False |
| Answer» C. | |
| 3. |
_______ is used for precipitation of heavy metals. |
| A. | Calcium hydroxide |
| B. | Lime |
| C. | Potassium hydroxide |
| D. | Lead oxide |
| Answer» C. Potassium hydroxide | |
| 4. |
Precipitation of metals varies depending on _________ level. |
| A. | Acidic |
| B. | Basic |
| C. | Neutral |
| D. | pH |
| Answer» E. | |
| 5. |
_______ treatment is suitable for metal salts bearing wastes. |
| A. | Neutralisation |
| B. | Chemical precipitation |
| C. | Hydrolysis |
| D. | Solvent extraction |
| Answer» C. Hydrolysis | |
| 6. |
Chemical precipitation treatment is effective in wastewater containing _______ |
| A. | Chemicals |
| B. | Chloride |
| C. | Toxic metals |
| D. | Impurities |
| Answer» D. Impurities | |
| 7. |
Chemical precipitation is used in conjunction with neutralisation. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 8. |
Precipitation by ___________ is widely used method for treating hazardous waste. |
| A. | Calcium hydroxide |
| B. | Sodium hydroxide |
| C. | Potassium hydroxide |
| D. | Lead oxide |
| Answer» B. Sodium hydroxide | |
| 9. |
Chemical precipitation makes the hazardous waste _________ |
| A. | Soluble |
| B. | Insoluble |
| C. | Volatile |
| D. | Acidic |
| Answer» C. Volatile | |