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प्रश्न
Draw a neat diagram for the following:
Haworth formula of glucopyranose.
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उत्तर
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संबंधित प्रश्न
Give scientific reasons:
Hydrolysis of sucrose is called inversion.
The glycosidic linkage in maltose is formed between _______________
Write the name of the polysaccharide used for the commercial preparation of glucose.
Write the name of the unit to which glucose unit is linked to from sucrose.
Write chemical reaction for following conversions
glucose into glucoxime
Classify the following carbohydrates into monosaccharide, disaccharide, oligosaccharide and polysaccharide:
glucose, cellulose, maltose, stachyose
Define carbohydrates.
Draw the Haworth projection structure of the following.
α-D-(–)-Fructofuranose
Write a chemical reaction to convert glucose into glucose cyanohydrin.
What is monosaccharide?
Identify the bond that links the carbon of two adjacent monosaccharides.
Which of the following carbohydrate is sweet to taste?
Carbohydrates can contain which of the following chemical groups?
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
By which of the following feature we can identify the relatively small DNA molecules of plasmids?
Which is the product obtained, when Br2 water reacts with glucose?
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 |
Chitin is a/an ______.
The number of asymmetric carbon atoms in the glucose molecule is ____________.
____________ do not give smaller sugar units on hydrolysis.
Monosaccharides are ______ in nature.
Match the columns and select the correct option.
| Column I | Column II | ||
| i. | Starch | a. | Animal storage molecule |
| ii. | Cellulose | b. | Plant storage molecule |
| iii. | Glycogen | c. | Heparin |
| iv. | Heteropolysaccharide | d. | Plant cell wall component |
Which reagent among the following is used to confirm presence of aldehydic carbonyl group in glucose?
Raffinose, sucrose and stachyose are respectively ____________.
Identify the INCORRECT statement regarding glucose.
Which element among the following is not present in saccharine?
Which one of the following is NOT soluble in water?
Which among the following statements is true for amylose?
When 2 moles of stachyose is hydrolyzed, the number of moles of galactose obtained is ____________.
On hydrolysis sucrose gives ____________.
Identify the number of oxygen atoms present in saccharic acid?
How many moles of acetic acid are obtained in the reaction when one mole glucose is treated with excess acetic anhydride?
The correct corresponding order of names of four aldoses with configuration given below Respectively is:
\[\ce{Glucose ->[(HCN)] Product ->[(hydrolysis)] Product ->[(HI + Heat)] A}\], the compound A is:
Assertion: A solution of sucrose in water is dextrorotatory. But on hydrolysis in the presence of little hydrochloric acid, it becomes levorotatory.
Reason: Sucrose hydrolysis gives equal amounts of glucose and fructose. As a result of this change in sign of rotation is observed.
Complete hydrolysis of cellulose gives ____________.
Classify the following into monosaccharides, oligosaccharides and polysaccharides.
Starch
Classify the following into monosaccharides, oligosaccharides and polysaccharides.
Fructose
Classify the following into monosaccharides, oligosaccharides and polysaccharides.
Sucrose
If 'n' represents total number of asymmetric carbon atoms in a compound, then the possible· number of optical isomers of the compound is ______.
Which carbon atoms of fructose are bonded together through oxygen forming fructofuranose?
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.
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?
Write Fischer projection formulae for glucose.
Why carbohydrates are generally optically active.
Why are carbohydrates generally optically active?
Write the Zwitter ion structure of alanine.
Why carbohydrates are generally optically active?
Why carbohydrates are generally optically active.
Why carbohydrates are generally optically active?
\[\ce{CH2OH - CO - (CHOH)4 - CH2OH}\] is an example of ______.
Why carbohydrates are generally optically active.
