MCQOPTIONS
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MCQOPTIONS
This section includes 17 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The nature of the crystallization process is governed by _____________ |
| A. | Thermodynamics |
| B. | Kinetic factors |
| C. | Thermodynamics and Kinetic factors |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 2. |
Crystal phases can be inter-converted by varying ____________ |
| A. | Temperature |
| B. | Pressure |
| C. | Size |
| D. | Viscosity |
| Answer» B. Pressure | |
| 3. |
The solution which is obtained after filtration is ____________ |
| A. | Suspended solution |
| B. | Clear solution |
| C. | Colloidal solution |
| D. | None of the mentioned |
| Answer» C. Colloidal solution | |
| 4. |
Insoluble impurities from solution during crystallization are removed by ____________ |
| A. | Drying |
| B. | Filtration |
| C. | Heating |
| D. | Cooling |
| Answer» C. Heating | |
| 5. |
The solution of impure compound and solvent is concentrated to get ____________ |
| A. | Unsaturated solution |
| B. | Undersaturaed solution |
| C. | Saturated solution |
| D. | Oversaturated solution |
| Answer» D. Oversaturated solution | |
| 6. |
At room temperature, the impure compound in crystallisation is ____________ |
| A. | Soluble |
| B. | Sparingly soluble |
| C. | Insoluble |
| D. | None of the mentioned |
| Answer» C. Insoluble | |
| 7. |
Crystallisation is based on the ____________ |
| A. | Difference in melting point |
| B. | Difference in boiling point |
| C. | Difference in pressure |
| D. | Difference in solubility |
| Answer» E. | |
| 8. |
CRYSTAL_PHASES_CAN_BE_INTER-CONVERTED_BY_VARYING?$ |
| A. | Temperature |
| B. | Pressure |
| C. | Size |
| D. | Viscosity |
| Answer» B. Pressure | |
| 9. |
The_nature_of_the_crystallization_process_is_governed_by$ |
| A. | Thermodynamics |
| B. | Kinetic factors |
| C. | Thermodynamics and Kinetic factors |
| D. | None of the mentioned |
| Answer» D. None of the mentioned | |
| 10. |
The solution which is obtained after filtration i? |
| A. | Suspended solution |
| B. | Clear solution |
| C. | Colloidal solution |
| D. | None of the mentioned |
| Answer» C. Colloidal solution | |
| 11. |
Insoluble impurities from solution during crystallization are removed by |
| A. | Drying |
| B. | Filtration |
| C. | Heating |
| D. | Cooling |
| Answer» C. Heating | |
| 12. |
The solution of impure compound and solvent is concentrated to get |
| A. | Unsaturated solution |
| B. | Undersaturaed solution |
| C. | Saturated solution |
| D. | Oversaturated solution |
| Answer» D. Oversaturated solution | |
| 13. |
Which of the following is known as mother liquor? |
| A. | Solvent |
| B. | Solute |
| C. | Solution |
| D. | Filtrate |
| Answer» E. | |
| 14. |
At room temperature, the impure compound in crystallisation is |
| A. | Soluble |
| B. | Sparingly soluble |
| C. | Insoluble |
| D. | None of the mentioned |
| Answer» C. Insoluble | |
| 15. |
Which of the following is the example of crystallisation process? |
| A. | Purification of alum |
| B. | Purification of sea water |
| C. | Separation of gases from air |
| D. | None of the mentioned |
| Answer» B. Purification of sea water | |
| 16. |
Crystallisation is based on the |
| A. | Difference in melting point |
| B. | Difference in boiling point |
| C. | Difference in pressure |
| D. | Difference in solubility |
| Answer» E. | |
| 17. |
Which of the following is not a common method used for purification? |
| A. | Sublimation |
| B. | Crystallisation |
| C. | Electrolysis |
| D. | Chromatography |
| Answer» D. Chromatography | |