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प्रश्न
Write chemical reaction for following conversions
glucose into glucoxime
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उत्तर
Glucose forms glucoxime by reaction with hydroxylamine:
\[\begin{array}{cc}
\phantom{}\ce{CHO}\phantom{.............}\ce{CH = N - OH}\phantom{.}\\
\phantom{.}|\phantom{..................}|\phantom{...............}\\
\ce{(CHOH)4 ->[NH2 - OH](CHOH)4 + H2O}\\
\phantom{}|\phantom{..................}|\phantom{..............}\\
\phantom{}\ce{\underset{\text{Glucose}}{CH2OH} \phantom{..........}\underset{\text{Oxime}}{CH2OH}}\phantom{........}
\end{array}\]
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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.
Glucose on oxidation with dilute nitric acid gives _______________
The glycosidic linkage in maltose is formed between _______________
Write the name of the polysaccharide used for the commercial preparation of glucose.
Define carbohydrates.
Draw the Haworth projection structure of the following.
α-D-(–)-Fructofuranose
Write a commercial method for preparation of glucose.
Draw the structure of the pyran.
Which of the following is the basic unit of carbohydrates?
Formation of lactose by conden ation results in the release of how many molecules of water?
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?
All these carbohydrates contain \[\ce{1 -> 4β}\] glycosidic linkage, EXCEPT ____________.
Which of the following monosaccharide is a ketohexose?
Stachyose is ____________.
Which one of the following is a carbohydrate but does NOT follow the general formula of carbohydrate?
Which one of the following is Tetrose sugar?
Which of the following statements is NOT true for glyceraldehyde?
Which one of the following sugar does NOT have same empirical fonnula as that of carbohydrate?
How many moles of fructose and galactose respectively are obtained on hydrolysis of 1 mole stachyose?
What is the number of hydroxyl groups present in lactic acid?
Which of the following statement is NOT true about saccharic acid?
Which among the following reagents is used for conversion of glucose to glucoxime?
What is the molecular formula of glyceraldehyde?
Which among the following reagents is used to obtain gluconic acid from glucose?
What is the product obtained when Br2 water reacts with glucose?
How many hydroxyl groups are present in Erythrulose?
How many optical isomers are possible for a compound having four asymmetric carbon atoms?
Which one given below is a non-reducing sugar?
α-D (+) Glucose and β-D (+) glucose are ____________.
Which of the following are epimers?
Why carbohydrates are generally optically active?
Classify the following into monosaccharides, oligosaccharides and polysaccharides.
Fructose
Classify the following into monosaccharides, oligosaccharides and polysaccharides.
Maltose
The molecule of glucose is also called ______.
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 |
Starch and cellulose are compounds made up of many units of ______.
Consider the following reaction
\[\ce{A <-[Br2 - H2O] Glucose ->[HNO3] B}\]
Here, 'A' and 'B' are respectively.
Why carbohydrates are generally optically active.
Describe the action of the following reagent on glucose:
Bromine water
Carbohydrates that do not undergo hydrolysis further are called ______.
Explain the hydrolysis of sucrose.
Write the ring structure of glucose.
CH2 OH - CO - (CHOH)4 - CH2 OH is an example of ______.
Why carbohydrates are generally optically active?
\[\ce{CH2OH - CO - (CHOH)4 - CH2 OH}\] is an example of ______.
Why carbohydrates are generally optically active?
Why carbohydrates are generally optically active?
