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प्रश्न
What is the action of the following reagents on glucose?
hydroxylamine
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उत्तर
Glucose forms oxime by reaction with hydroxylamine:
\[\begin{array}{cc}
\phantom{}\ce{CHO}\phantom{..............}\ce{CH = N - OH}\phantom{..}\\
\phantom{.}|\phantom{..................}|\phantom{...............}\\
\ce{(CHOH)4 ->[NH2 - OH](CHOH)4 + H2O}\\
\phantom{}|\phantom{..................}|\phantom{..............}\\
\phantom{}\ce{\underset{\text{Glucose}}{CH2OH} \phantom{..........}\underset{\text{Oxime}}{CH2OH}}\phantom{........}
\end{array}\]
APPEARS IN
संबंधित प्रश्न
Draw a neat diagram for the following:
Haworth formula of glucopyranose.
Write chemical reaction for following conversions
glucose into glucoxime
Classify the following carbohydrates into monosaccharide, disaccharide, oligosaccharide and polysaccharide:
glucose, cellulose, maltose, stachyose
Explain the classification of carbohydrates with examples.
What is the action of the following reagents on glucose?
hydrogen iodide
Define carbohydrates.
Write a chemical reaction to convert glucose into glucose cyanohydrin.
Write a commercial method for preparation of glucose.
Draw the structure of the pyran.
By which of the following process formation of glycosidic bond occurs?
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?
The reserve food material in animals is ____________.
Fructose is the fruit sugar and chemically it is ketohexose but it has a ______ rather than a ______.
Identify the WRONG statement.
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 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?
All these carbohydrates contain \[\ce{1 -> 4β}\] glycosidic linkage, EXCEPT ____________.
Identify the INCORRECT statement regarding glucose.
Which of the following monosaccharide is a ketohexose?
Which element among the following is not present in saccharine?
Which one of the following carbohydrates is insoluble in water?
How many moles of fructose and galactose respectively are obtained on hydrolysis of 1 mole stachyose?
How many moles of acetic acid are obtained in the reaction when one mole glucose is treated with excess acetic anhydride?
Which among the following observations suggests that glucose also exists in cyclic form?
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:
Glucose is an aldose. Which one of the following reactions is not expected with glucose?
The molecule of glucose is also called ______.
Identify the monosaccharide containing only one asymmetric carbon atom in its molecule.
Starch and cellulose are compounds made up of many units of ______.
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 ______.
\[\ce{CH2OH - CO - (CHOH)4 - CH2OH}\] is an example of ______.
Why carbohydrates are generally optically active.
Why carbohydrates are generally optically active?
Assign D/L configuration to the following monosaccharides:
Carbohydrates that do not undergo hydrolysis further are called ______.
Write the ring structure of glucose.
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.
Two monosaccharides are held together by ______ bond.
Which of the following is used to separate glucose and fructose from hydrolysate of sucrose?
