MCQOPTIONS
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MCQOPTIONS
This section includes 15 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Urea s dissolution is because of __________ |
| A. | carbon bond |
| B. | oxygen Bond |
| C. | hydrogen bond |
| D. | nitrogen bond |
| Answer» D. nitrogen bond | |
| 2. |
Dielectric constant of water is ____________ |
| A. | 1 |
| B. | higher |
| C. | 0 |
| D. | lower |
| Answer» C. 0 | |
| 3. |
Water has a maximum density at _____ degree centigrade. |
| A. | 32 |
| B. | 100 |
| C. | 0 |
| D. | 4 |
| Answer» E. | |
| 4. |
Pure water is a good conductor. |
| A. | true |
| B. | false |
| Answer» C. | |
| 5. |
What is the hybridization of water? |
| A. | spd |
| B. | sp<sup>3</sup> |
| C. | sp<sup>2</sup> |
| D. | sp |
| Answer» C. sp<sup>2</sup> | |
| 6. |
Which of the following, do you think are the synthetic resins present in removal of permanent hardness? |
| A. | cation exchange resins only |
| B. | anion exchange resins only |
| C. | both cation exchange resins and anion exchange resins |
| D. | neither cation exchange resins nor anion exchange resins |
| Answer» D. neither cation exchange resins nor anion exchange resins | |
| 7. |
What is Calgon? |
| A. | potassium Phantom metaphosphate |
| B. | sodium penta metaphosphate |
| C. | potassium hexametaphosphate |
| D. | sodium hexametaphosphate |
| Answer» E. | |
| 8. |
Which of the following is a method of removing temporary hardness? |
| A. | boiling |
| B. | adding washing soda |
| C. | adding caustic soda |
| D. | adding sodium phosphate |
| Answer» B. adding washing soda | |
| 9. |
What is the most efficient method to get water with zero degrees hardness? |
| A. | Electrolysis |
| B. | Permutit process |
| C. | Synthetic resins |
| D. | Calgon process |
| Answer» C. Synthetic resins | |
| 10. |
The type of hardness that occurs due to the presence of bicarbonate of calcium and magnesium ions hardness is _______________ |
| A. | half hardness |
| B. | temporary hardness |
| C. | permanent hardness |
| D. | momentary hardness |
| Answer» C. permanent hardness | |
| 11. |
Do ice float on Water? |
| A. | may be |
| B. | yes |
| C. | cannot say |
| D. | no |
| Answer» C. cannot say | |
| 12. |
Compounds can undergo hydrolysis with water. |
| A. | false |
| B. | true |
| Answer» C. | |
| 13. |
Water is of how many types in hydrated salt? |
| A. | 1 |
| B. | 5 |
| C. | 4 |
| D. | 3 |
| Answer» C. 4 | |
| 14. |
Water reacts with ________________ |
| A. | metalloids |
| B. | metals only |
| C. | nonmetals only |
| D. | both metals and nonmetals |
| Answer» E. | |
| 15. |
Water is amphoteric in nature. |
| A. | true |
| B. | false |
| Answer» B. false | |