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. |
Starch : Plants : : X : Animals. Identify X. |
| A. | Starch |
| B. | Glucose |
| C. | Cellulose |
| D. | Glycogen |
| Answer» E. | |
| 2. |
Cellulose is a _______ saccharide. |
| A. | reducing |
| B. | branched chain |
| C. | β-glucose straight chain |
| D. | oligo |
| Answer» D. oligo | |
| 3. |
The branching in the ________ component of starch occurs by the glycosidic linkage between _______ carbons. |
| A. | amylose; C1-C4 |
| B. | amylose; C1-C6 |
| C. | amylopectin; C1-C4 |
| D. | amylopectin; C1-C6 |
| Answer» E. | |
| 4. |
Amylum is one of the components of starch. |
| A. | True |
| B. | False |
| Answer» C. | |
| 5. |
Which of the following statements is incorrect with respect to starch? |
| A. | It is a reducing carbohydrate |
| B. | It is a polymer of α-D-glucose |
| C. | It gives blue colour with iodine |
| D. | It consists of branched chains |
| Answer» B. It is a polymer of α-D-glucose | |
| 6. |
Identify the saccharide from the Haworth projection shown below. |
| A. | Lactose |
| B. | Maltose |
| C. | Sucrose |
| D. | Trehalose |
| Answer» B. Maltose | |
| 7. |
Which of the following is also known as beet sugar? |
| A. | Fructose |
| B. | Sucrose |
| C. | Maltose |
| D. | Lactose |
| Answer» C. Maltose | |
| 8. |
Which of the following is incorrect regarding maltose? |
| A. | It consists of two glucopyranose units |
| B. | It is a non-reducing sugar |
| C. | Glycosidic bond between C1 of one unit and C4 of the other unit |
| D. | It is a disaccharide |
| Answer» C. Glycosidic bond between C1 of one unit and C4 of the other unit | |
| 9. |
Identify the enzyme X in the following reaction. |
| A. | Amylase |
| B. | Maltase |
| C. | Zymase |
| D. | Diastase |
| Answer» E. | |
| 10. |
Sucrose is made of which of the following monosaccharides? |
| A. | α-D-glucose, α-D-fructose |
| B. | α-D-glucose, β-D-fructose |
| C. | β-D-glucose, α-D-fructose |
| D. | β-D-glucose, β-D-fructose |
| Answer» C. β-D-glucose, α-D-fructose | |
| 11. |
Which of the following is false regarding the reaction of sucrose to give fructose and glucose? |
| A. | It can take place in the presence of enzyme sucrase |
| B. | It results in the formation of a glycosidic bond. |
| C. | It is an inversion reaction |
| D. | It is a hydrolysis reaction |
| Answer» C. It is an inversion reaction | |
| 12. |
Sucrose is a _______ compound and the product mixture obtained from its hydrolysis is _______ in nature. |
| A. | dextrorotatory; dextrorotatory |
| B. | dextrorotatory; laevorotatory |
| C. | laevorotatory; dextrorotatory |
| D. | laevorotatory; laevorotatory |
| Answer» C. laevorotatory; dextrorotatory | |
| 13. |
Two monosaccharides are joined through a ______ bond to form a disaccharide. |
| A. | ionic |
| B. | peptide |
| C. | glycosidic |
| D. | phosphodiester |
| Answer» D. phosphodiester | |
| 14. |
Which of the following disaccharides on hydrolysis with invertase gives two different monosaccharides? |
| A. | Sucrose |
| B. | Lactulose |
| C. | Lactose |
| D. | Maltose |
| Answer» B. Lactulose | |
| 15. |
Disaccharides on _______ with dilute HCl yield two same or different monosaccharides. |
| A. | hydration |
| B. | hydrolysis |
| C. | oxidation |
| D. | carbonation |
| Answer» C. oxidation | |