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प्रश्न
Draw the Haworth projection structure of the following.
α-D-(–)-Fructofuranose
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उत्तर
Haworth projection formula of α-D-(–)-fructofuranose:
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संबंधित प्रश्न
Give scientific reasons:
The disaccharide sucrose gives negative Tollens test while the disaccharide maltose gives a positive Tollens test.
Glucose on oxidation with dilute nitric acid gives _______________
Write the name of the unit to which glucose unit is linked to from sucrose.
Draw the structure of the pyran.
Identify the given structure 'P' and 'Q'.
From the following identify an example of disaccharides.
Which of the following monosaccharides is a tetrose sugar?
Which of the following carbohydrate is sweet to taste?
Carbohydrates can contain which of the following chemical groups?
From the following identify the group that is exclusively consists of polysaccharides.
From the following identify the materials that are made up of cellulose.
i. Plant cell wall
ii. Exoskeleton of arthropods
iii. Paper from plant pulp
iv. Cotton fibre
Identify the WRONG statement.
Match the Column I and Column II select the correct option.
| Column I | Column II | ||
| i. | Monosaccharides | a. | Stored energy in animals |
| ii. | Glycogen | b. | Polymer made from ß-glucose molecules |
| iii. | Cellulose | c. | Exoskeleton of arthropods |
| iv. | Chitin | d. | Building blocks of carbohydrates |
| e. | Plant hormone |
Which reagent among the following is used to confirm presence of aldehydic carbonyl group in glucose?
Which carbon atoms of α- D glucopyranose and β-D-fructofuranose respectively are linked together to form glycosidic linkage in sucrose?
Which among the following type of linkages is present in cellulose?
Prolonged heating of glucose with hot HI results in the formation of ____________.
Identify the INCORRECT statement regarding glucose.
Which of the following monosaccharide is a ketohexose?
Which one of the following is an oligosaccharide?
Which one of the following is a carbohydrate but does NOT follow the general formula of carbohydrate?
Which one of the following carbohydrates is insoluble in water?
Glucose and gluconic acid treated with dilute nitric acid forms saccharic acid. What does this indicate?
Which among the following statements is true for amylose?
Which among the following reagents is used to confirm the presence of carbonyl group in glucose?
Which of the following statement is NOT true about saccharic acid?
How many hydroxyl groups are present in Erythrulose?
Which among the following observations suggests that glucose also exists in cyclic form?
Which one given below is a non-reducing sugar?
\[\ce{Glucose ->[(HCN)] Product ->[(hydrolysis)] Product ->[(HI + Heat)] A}\], the compound A is:
What are reducing and non-reducing sugars?
Why carbohydrates are generally optically active?
Classify the following into monosaccharides, oligosaccharides and polysaccharides.
Starch
Classify the following into monosaccharides, oligosaccharides and polysaccharides.
Sucrose
Classify the following into monosaccharides, oligosaccharides and polysaccharides.
Maltose
Lactose is made of ______.
Glucose on oxidation with bromine water yields gluconic acid. This reaction confirms the presence of ______.
A molecule of stachyose contains how many carbon atoms?
Match the Column I with Column II and choose the correct answer from options below:
| Column I | Column II |
| A. Purine | 1. Glycogen |
| B. Pyrimidine | 2. Cellulose |
| C. Structural polysaccharide | 3. Glucagon |
| D. Storage polysaccharide | 4. Adenine |
| 5. Cytosine |
Identify the monosaccharide containing only one asymmetric carbon atom in its molecule.
Which one is a non-reducing commercial sugar?
Consider the following reaction
\[\ce{A <-[Br2 - H2O] Glucose ->[HNO3] B}\]
Here, 'A' and 'B' are respectively.
The glycosidic linkage present in maltose is ______.
Why carbohydrates are generally optically active.
Describe the action of the following reagent on glucose:
Bromine water
Describe the action of the following reagent on glucose:
dil. Nitric acid.
Explain the hydrolysis of sucrose.
Why carbohydrates are generally optically active.
Why carbohydrates are generally optically active.
Write the Zwitter ion structure of alanine.
\[\ce{CH2OH - CO - (CHOH)4 - CH2 OH}\] is an example of ______.
Which of the following is used to separate glucose and fructose from hydrolysate of sucrose?
