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प्रश्न
Draw the structure of α-D glucopyranose.
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उत्तर
संबंधित प्रश्न
Give scientific reasons:
Hydrolysis of sucrose is called inversion.
Give two evidences for presence of formyl group in glucose.
Draw a neat diagram for the following:
Haworth formula of glucopyranose.
Classify the following carbohydrates into monosaccharide, disaccharide, oligosaccharide and polysaccharide:
glucose, cellulose, maltose, stachyose
What is the action of the following reagents on glucose?
acetic anhydride
What is the action of the following reagents on glucose?
hydroxylamine
Draw the Haworth projection structure of the following.
α-D-(–)-Fructofuranose
Which of the following type of carbohydrates cannot be hydrolyzed?
Identify the bond that links the carbon of two adjacent monosaccharides.
From the following identify an example of disaccharides.
Which enzymes would work sequentially on potatoes consumed by an individual?
Which of the following is the basic unit of carbohydrates?
From the following which is a heteropolysaccharide?
By which of the following feature we can identify the relatively small DNA molecules of plasmids?
Identify a non-reducing carbohydrate from the following.
From the following identify the two types of glucose polymers present in starch.
Identify the CORRECT combination.
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 ____________.
All these carbohydrates contain \[\ce{1 -> 4β}\] glycosidic linkage, EXCEPT ____________.
The general formula for polysaccharide is ____________.
Which one of the following is NOT soluble in water?
Which following reagent is used to detect presence of five hydroxyl groups in a glucose molecule?
Which one of the following sugar does NOT have same empirical fonnula as that of carbohydrate?
When 2 moles of stachyose is hydrolyzed, the number of moles of galactose obtained is ____________.
Which among the following reagents is used to confirm the presence of carbonyl group in glucose?
On hydrolysis sucrose gives ____________.
How many moles of acetic acid are obtained in the reaction when one mole glucose is treated with excess acetic anhydride?
What is the product obtained when Br2 water reacts with glucose?
When one mole of lactose is hydrolysed, the hydrolysate contains ____________.
How many optical isomers are possible for a compound having four asymmetric carbon atoms?
\[\ce{Glucose ->[(HCN)] Product ->[(hydrolysis)] Product ->[(HI + Heat)] A}\], the compound A is:
Which of the following are epimers?
Why carbohydrates are generally optically active?
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
A molecule of stachyose contains how many carbon atoms?
Corn is immersed in boiling water. It is then cooled, and the solution becomes sweet. It is due to ______.
Starch and cellulose are compounds made up of many units of ______.
Which one is a non-reducing commercial sugar?
Identify the product obtained in the following conversion.
\[\ce{Glucose ->[(O)][Br2 water] Product}\]
\[\ce{CH2OH - CO - (CHOH)4 - CH2OH}\] is an example of ______.
Why carbohydrates are generally optically active?
Assign D/L configuration to the following monosaccharides:
The linkage present in Lactose is ______.
CH2 OH - CO - (CHOH)4 - CH2 OH is an example of ______.
Why are carbohydrates generally optically active?
\[\ce{CH2OH-CO-(CHOH)4-CH2OH}\] is an example of ______.
Why carbohydrates are generally optically active?
\[\ce{CH2OH - CO - (CHOH)4 - CH2OH}\] is an example of ______.
Which of the following is used to separate glucose and fructose from hydrolysate of sucrose?
The sugar found in milk is ______.
