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प्रश्न
What is the action of the following reagents on glucose?
acetic anhydride
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उत्तर
Glucose reacts with acetic anhydride to form glucose pentaacetate.
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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.
Give two evidences for presence of formyl group in glucose.
Write the name of the polysaccharide used for the commercial preparation of glucose.
Draw the structure of α-D glucopyranose.
Explain the preparation of glucose from sucrose.
Define carbohydrates.
Write a chemical reaction to convert glucose into glucose cyanohydrin.
Draw the structure of the pyran.
Identify the bond that links the carbon of two adjacent monosaccharides.
Identify the given structure 'P' and 'Q'.
Which enzymes would work sequentially on potatoes consumed by an individual?
Which of the following monosaccharides is a tetrose sugar?
Which of the following is the basic unit of carbohydrates?
Which of the following carbohydrate is sweet to taste?
Carbohydrates can contain which of the following chemical groups?
The reserve food material in animals is ____________.
Which among the following compounds is obtained when glucose reacts with hydrogen cyanide?
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 |
Which among the following type of linkages is present in cellulose?
All these carbohydrates contain \[\ce{1 -> 4β}\] glycosidic linkage, EXCEPT ____________.
Which one of the following is Tetrose sugar?
Which of the following molecules reduces Fehling's solution?
Which following reagent is used to detect presence of five hydroxyl groups in a glucose molecule?
How many moles of fructose and galactose respectively are obtained on hydrolysis of 1 mole stachyose?
Identify the number of secondary carbon atoms in glucose.
Which of the following statement is NOT true about saccharic acid?
Identify the number of oxygen atoms present in saccharic acid?
What is the molecular formula of glyceraldehyde?
What is the product obtained when Br2 water reacts with glucose?
When one mole of lactose is hydrolysed, the hydrolysate contains ____________.
Which among the following observations suggests that glucose also exists in cyclic form?
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:
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.
Is the following sugar, D-sugar or L-sugar?
The two monosaccharides in a disaccharide are held together by ______ bonds.
Identify the monosaccharide containing only one asymmetric carbon atom in its molecule.
Corn is immersed in boiling water. It is then cooled, and the solution becomes sweet. It is due to ______.
The glycosidic linkage present in maltose is ______.
Why carbohydrates are generally optically active.
Why carbohydrates are generally optically active?
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.
\[\ce{CH2OH - CO - (CHOH)4 - CH2OH}\] is an example of ______.
Two monosaccharides are held together by ______ bond.
Which of the following is used to separate glucose and fructose from hydrolysate of sucrose?
The sugar found in milk is ______.
