MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Fructose is commonly known as ______ |
| A. | dextrose |
| B. | laevulose |
| C. | pyranose |
| D. | furanose |
| Answer» C. pyranose | |
| 2. |
A solution having equal amount of D-glucose and D-fructose is called _____ sugar. |
| A. | invert |
| B. | fruit |
| C. | brown |
| D. | cane |
| Answer» B. fruit | |
| 3. |
Fructose exists as both pyranose and furanose structures. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
The furanose structure of fructose is obtained by the interaction of groups at which carbon atoms? |
| A. | C<sub>1</sub> and C<sub>5</sub> |
| B. | C<sub>1</sub> and C<sub>6</sub> |
| C. | C<sub>2</sub> and C<sub>5</sub> |
| D. | C<sub>2</sub> and C<sub>6</sub> |
| Answer» D. C<sub>2</sub> and C<sub>6</sub> | |
| 5. |
Which of the following is incorrect with respect to fructose? |
| A. | It is a ketohexose |
| B. | It is present in honey |
| C. | It has L configuration |
| D. | It is known as laevulose |
| Answer» D. It is known as laevulose | |
| 6. |
Glucose can exist in both a straight chain and ring form. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 7. |
When the OH group at anomeric carbon lies on the same side as that of the OH group on C3 carbon, it is known as ______ |
| A. | -glucose |
| B. | -glucose |
| C. | D-glucose |
| D. | (+)-glucose |
| Answer» C. D-glucose | |
| 8. |
When the -form of glucose is dissolved in water and allowed to rest, what will be the percentage of -form in this solution after some time? |
| A. | 0 |
| B. | 36 |
| C. | 64 |
| D. | 100 |
| Answer» D. 100 | |
| 9. |
Which form of glucose is obtained by crystallization from hot and saturated aqueous solution at 371K? |
| A. | D-form |
| B. | L-form |
| C. | -form |
| D. | -form |
| Answer» E. | |
| 10. |
The hydroxyl group at which carbon is involved in ring formation in glucose? |
| A. | C<sub>3</sub> |
| B. | C<sub>4</sub> |
| C. | C<sub>5</sub> |
| D. | C<sub>6</sub> |
| Answer» D. C<sub>6</sub> | |
| 11. |
The -D-glucose and -D-glucose isomers of glucose are known as _______ |
| A. | enantiomers |
| B. | stereoisomers |
| C. | anomers |
| D. | glycomers |
| Answer» D. glycomers | |
| 12. |
Which of the following tests does glucose give? |
| A. | Tollen s test |
| B. | 2,4-DNP test |
| C. | Schiff s test |
| D. | Addition product with NaHSO<sub>3</sub> |
| Answer» B. 2,4-DNP test | |