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This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Unit Processes knowledge and support exam preparation. Choose a topic below to get started.
1. |
The reaction of an alkali cellulose with carbon disulphide produces what? |
A. | Cellulose xanthate |
B. | Cellulose sulphide |
C. | Sulphide xanthate |
D. | None of the mentioned |
Answer» B. Cellulose sulphide | |
2. |
Cellulose occurs in which type of polymer weight? |
A. | Low molecular weight |
B. | Moderate |
C. | High molecular weight |
D. | None of the mentioned |
Answer» D. None of the mentioned | |
3. |
CELLULOSE_OCCURS_IN_WHICH_TYPE_OF_POLYMER_WEIGHT??$ |
A. | Low molecular weight |
B. | Moderate |
C. | High molecular weight |
D. | None of the mentioned |
Answer» D. None of the mentioned | |
4. |
The reaction of an alkali cellulose with carbon disulphide produces what?$ |
A. | Cellulose xanthate |
B. | Cellulose sulphide |
C. | Sulphide xanthate |
D. | None of the mentioned |
Answer» B. Cellulose sulphide | |
5. |
Cellulose acetate is used in manufacturing of what? |
A. | Cellulose acetate yarn |
B. | Plastics |
C. | Photographic films |
D. | All of the mentioned |
Answer» E. | |
6. |
The bicyclic terpenes are more reactive than what? |
A. | Monocyclic terpenes |
B. | Tricyclic terpenes |
C. | Both mono and tricyclic terpenes |
D. | None of the mentioned |
Answer» B. Tricyclic terpenes | |
7. |
Terpene esters can be made by the direct addition of fatty acids only. |
A. | True |
B. | False |
Answer» C. | |
8. |
Why is agitation in reaction kettle necessary? |
A. | Immiscible reactants |
B. | Viscosity |
C. | Both immiscible reactant and viscosity |
D. | None of the mentioned |
Answer» D. None of the mentioned | |
9. |
What happens to the rate of heating as kettle size increases? |
A. | Increases |
B. | Decreases |
C. | No change |
D. | None of the mentioned |
Answer» C. No change | |
10. |
Which type of catalyst are used in manufacture of Alkyd Resins? |
A. | Lead |
B. | Zinc chloride |
C. | Triphenyl phosphite |
D. | All of the mentioned |
Answer» E. | |
11. |
How is diffusion in mixtures which are viscous at start? |
A. | Fast |
B. | Mild |
C. | Slow |
D. | None of the mentioned |
Answer» D. None of the mentioned | |
12. |
The Dibasic acids are usually the crude acid mixtures. |
A. | True |
B. | False |
Answer» C. | |
13. |
Alkyd resins are polymeric esters are heated with what? |
A. | Basic acid |
B. | Dibasic acid |
C. | Tribasic acid |
D. | All of the mentioned |
Answer» C. Tribasic acid | |