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This section includes 8 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 residue in the round bottom flask is ____________ |
A. | Volatile |
B. | Non volatile |
C. | None of the mentioned |
D. | Volatile & Non volatile |
Answer» C. None of the mentioned | |
2. |
The process of distillation is used for the liquids having ____________ |
A. | Sufficient difference in their boiling point |
B. | Sufficient difference in their melting point |
C. | Sufficient difference in their solubility |
D. | None of the mentioned |
Answer» B. Sufficient difference in their melting point | |
3. |
The distilled water is collected in ____________ |
A. | Receiver |
B. | Adapter |
C. | Condenser |
D. | Round bottom flask |
Answer» B. Adapter | |
4. |
Which of the following will vaporize faster? |
A. | Aniline |
B. | Chloroform |
C. | Water |
D. | Kerosene |
Answer» C. Water | |
5. |
The boiling point of aniline is ____________ |
A. | 438 K |
B. | 370 K |
C. | 338 K |
D. | 457 K |
Answer» E. | |
6. |
The boiling point of chloroform is ____________ |
A. | 334 K |
B. | 286 K |
C. | 350 K |
D. | 298 K |
Answer» B. 286 K | |
7. |
Porcelain pieces are put into the distillation flask to avoid ____________ |
A. | Overheating |
B. | Uniform boiling |
C. | Bumping of the solution |
D. | None of the mentioned options |
Answer» D. None of the mentioned options | |
8. |
The process of heating a liquid mixture to form vapours and then cooling the vapours to get pure component is called ____________ |
A. | Crystallisation |
B. | Distillation |
C. | Chromatography |
D. | Sublimation |
Answer» C. Chromatography | |