MCQOPTIONS
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MCQOPTIONS
This section includes 14 Mcqs, each offering curated multiple-choice questions to sharpen your Pulp Paper knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
_________ serves as a model compound for the acid ionization behaviour of many carboxylic acid groups. |
| A. | Hydroxylic acid |
| B. | Sulphuric acid |
| C. | Acetic acid |
| D. | Nitric acid |
| Answer» D. Nitric acid | |
| 2. |
_________ reactions of secondary and primary amines are analogous where 1 or 2, respectively, of the R groups are protons. |
| A. | Acid dissociation |
| B. | Base dissociation |
| C. | Cationic association |
| D. | Anionic association |
| Answer» B. Base dissociation | |
| 3. |
Potato _________ has about 0.1 to 0.3% equivalent PO4 corresponding to a degree of substitution of 0.002 to 0.005. |
| A. | Starch |
| B. | Lignin |
| C. | Pulp |
| D. | Protein |
| Answer» B. Lignin | |
| 4. |
A high charge density (above the 30% level) tends to completely unravel the normally coiled molecules in solution. What’s the criteria discussed here? |
| A. | Poly electrolytes |
| B. | Charge density |
| C. | Zwitter ion |
| D. | Amphoteric |
| Answer» C. Zwitter ion | |
| 5. |
__________SERVES_AS_A_MODEL_COMPOUND_FOR_THE_ACID_IONIZATION_BEHAVIOUR_OF_MANY_CARBOXYLIC_ACID_GROUPS.?$ |
| A. | Hydroxylic acid |
| B. | Sulphuric acid |
| C. | Acetic acid |
| D. | Nitric acid |
| Answer» D. Nitric acid | |
| 6. |
__________REACTIONS_OF_SECONDARY_AND_PRIMARY_AMINES_ARE_ANALOGOUS_WHERE_1_OR_2,_RESPECTIVELY,_OF_THE_R_GROUPS_ARE_PROTONS.?$ |
| A. | Acid dissociation |
| B. | Base dissociation |
| C. | Cationic association |
| D. | Anionic association |
| Answer» B. Base dissociation | |
| 7. |
Potato _________ has about 0.1 to 0.3% equivalent PO4 corresponding to a degree of substitution of 0.002 to 0.005? |
| A. | Starch |
| B. | Lignin |
| C. | Pulp |
| D. | Protein |
| Answer» B. Lignin | |
| 8. |
Anionic _________ usually contains about 5% polyacrylic acid groups formed by co-polymerization of acrylamide and acrylic acid monomers or by hydrolysis of P.A.M. homopolymer under conditions to convert some of the amide groups to carboxylate salts. |
| A. | Poly electrolytes |
| B. | Polyacrylamimdes |
| C. | Charge density |
| D. | Carboxylate |
| Answer» C. Charge density | |
| 9. |
_________ are relatively inexpensive polymers that are easily devised to high molecular weights on the order of several million (g/mol). |
| A. | Poly electrolytes |
| B. | Polyacrylamimdes |
| C. | Charge density |
| D. | Carboxylate |
| Answer» C. Charge density | |
| 10. |
A high charge density (above the 30% level) tends to completely unravel the normally coiled molecules in solution. What’s the criteria discussed here?$ |
| A. | Poly electrolytes |
| B. | Charge density |
| C. | Zwitter ion |
| D. | Amphoteric |
| Answer» C. Zwitter ion | |
| 11. |
Polymers with charged groups are called _________ |
| A. | Amphoteric |
| B. | Zwitter ion |
| C. | Neutral |
| D. | Poly electrolytes |
| Answer» E. | |
| 12. |
A molecule with only carboxylic acid is amphoteric and a zwitterion. |
| A. | True |
| B. | False |
| Answer» C. | |
| 13. |
The term _________is often utilized to mean a material containing cationic and anionic groups; strictly speaking, however, it means a material that is both acidic and basic. |
| A. | Amphoteric |
| B. | Zwitter ion |
| C. | Neutral |
| D. | Cationic |
| Answer» B. Zwitter ion | |
| 14. |
Paper making polymers can be categorized as naturally occurring polymers, modified naturally occurring polymers, and synthetic polymers. |
| A. | True |
| B. | False |
| Answer» B. False | |