MCQOPTIONS
Saved Bookmarks
MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Applied Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
All carbonate and bicarbonates are _________ |
| A. | Alkaline |
| B. | Acidic |
| C. | Highly acidic |
| D. | Neutral |
| Answer» B. Acidic | |
| 2. |
Which of the following process does not remove the permanent hardness of water? |
| A. | Lime-soda |
| B. | Ion exchange process |
| C. | Zeolite process |
| D. | Heating |
| Answer» D. Heating | |
| 3. |
The total hardness can be given by _________ |
| A. | Temporary + permanent hardness |
| B. | Temporary – permanent hardness |
| C. | Temporary * permanent hardness |
| D. | Temporary/permanent hardness |
| Answer» B. Temporary – permanent hardness | |
| 4. |
Which of the following does not cause the permanent hardness in water? |
| A. | Nitrates |
| B. | Sulphates |
| C. | Chlorides |
| D. | Bicarbonates |
| Answer» E. | |
| 5. |
In _____________ when the eater is heated then the soluble salts turns into insoluble ones and removed by filtration. |
| A. | Temporary hardness |
| B. | Permanent hardness |
| C. | Non-carbonate |
| D. | Non-alkaline |
| Answer» B. Permanent hardness | |
| 6. |
The organic matter in drinking water must be about _________ |
| A. | 0.2-1.0ppm |
| B. | 1.0-2.0ppm |
| C. | 2.0-3.0ppm |
| D. | 3.0-4.0ppm |
| Answer» B. 1.0-2.0ppm | |
| 7. |
The phosphate is about the range of __________ in drinking water. |
| A. | 5-10ppm |
| B. | 10-15ppm |
| C. | 15-20ppm |
| D. | 20-25ppm |
| Answer» C. 15-20ppm | |
| 8. |
The iron is about the range in drinking water is _________ |
| A. | 1-1.5ppm |
| B. | 0.01-0.1ppm |
| C. | 1-1.1ppm |
| D. | 0.1-1ppm |
| Answer» E. | |
| 9. |
The chloride in drinking water range can be about ___________ |
| A. | 200-600ppm |
| B. | 300-600ppm |
| C. | 400-600ppm |
| D. | 500-600ppm |
| Answer» B. 300-600ppm | |
| 10. |
The drinking water can have the magnesium limit about ____________ |
| A. | 10-150ppm |
| B. | 20-150ppm |
| C. | 30-150ppm |
| D. | 40-150ppm |
| Answer» D. 40-150ppm | |
| 11. |
The PH value of the drinking water is about _________ |
| A. | 6.5-8.5 |
| B. | 5.5-6.5 |
| C. | 4.5-5.5 |
| D. | 3.5-4.5 |
| Answer» B. 5.5-6.5 | |
| 12. |
The very hard water has the hardness of CaCO3 is given by ___________ |
| A. | 100-200ppm |
| B. | 100-300ppm |
| C. | 200-300ppm |
| D. | Above 300ppm |
| Answer» D. Above 300ppm | |
| 13. |
The hardness of moderately hard water is about _____________ |
| A. | 75-150ppm |
| B. | 75-120ppm |
| C. | 75-130ppm |
| D. | 75-100ppm |
| Answer» B. 75-120ppm | |
| 14. |
The soft water contains the hardness of about ____________ |
| A. | 0-45ppm |
| B. | 0-55ppm |
| C. | 0-65ppm |
| D. | 0-75ppm |
| Answer» E. | |
| 15. |
Soaps can be defined as the soap consuming capacity of the water sample. |
| A. | True |
| B. | False |
| Answer» B. False | |