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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:
\[\begin{array}{cc}
\phantom{}\ce{CHO}\phantom{..............}\ce{CH = N - OH}\phantom{..}\\
\phantom{.}|\phantom{..................}|\phantom{...............}\\
\ce{(CHOH)4 ->[NH2 - OH](CHOH)4 + H2O}\\
\phantom{}|\phantom{..................}|\phantom{..............}\\
\phantom{}\ce{\underset{\text{Glucose}}{CH2OH} \phantom{..........}\underset{\text{Oxime}}{CH2OH}}\phantom{........}
\end{array}\]
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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.
The glycosidic linkage in maltose is formed between _______________
Write the name of the unit to which glucose unit is linked to from sucrose.
Write chemical reaction for following conversions
glucose into gluconic acid
Explain the classification of carbohydrates with examples.
What is monosaccharide?
By which of the following process formation of glycosidic bond occurs?
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.
Identify the substances having glycosidic bond and peptide bond, respectively in their structure:
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 |
The number of asymmetric carbon atoms in the glucose molecule is ____________.
Which among the following type of linkages is present in cellulose?
Prolonged heating of glucose with hot HI results in the formation of ____________.
One mole of a carbohydrate on hydrolysis gives one mole of glucose and one mole of galactose. Identify the carbohydrate.
Stachyose is ____________.
\[\ce{CH3 - CH2 - CH2 - Br ->[Na][dry ether] A ->[Cl2] B}\]
Identify the product B in the above reaction.
Which one of the following carbohydrates is insoluble in water?
Which of the following statements is NOT true for glyceraldehyde?
Glucose and gluconic acid treated with dilute nitric acid forms saccharic acid. What does this indicate?
Which following reagent is used to detect presence of five hydroxyl groups in a glucose molecule?
What is the number of hydroxyl groups present in lactic acid?
Identify the number of secondary carbon atoms in glucose.
Which of the following statement is NOT true about saccharic acid?
What is the product obtained when Br2 water reacts with glucose?
Which one of the following rotates the plane polarized light towards left?
Which one given below is a non-reducing sugar?
α-D (+) Glucose and β-D (+) glucose are ____________.
Why carbohydrates are generally optically active?
Classify the following into monosaccharides, oligosaccharides and polysaccharides.
Sucrose
Write the structure of α-D (+) glucopyranose.
Which of the following groups contain polysaccharides?
Which carbon atoms of fructose are bonded together through oxygen forming fructofuranose?
The glycosidic linkage present in maltose is ______.
\[\ce{CH2OH - CO - (CHOH)4 - CH2OH}\] is an example of ______.
\[\ce{CH2OH-CO-(CHOH)4-CH2OH}\] is an example of ______.
Why carbohydrates are generally optically active.
Assign D/L configuration to the following monosaccharides:
Describe the action of the following reagent on glucose:
Bromine water
Explain the hydrolysis of sucrose.
CH2 OH - CO - (CHOH)4 - CH2 OH is an example of ______.
The linkage present in Lactose is ______.
Why are carbohydrates generally optically active?
Write the Zwitter ion structure of alanine.
Why carbohydrates are generally optically active?
\[\ce{CH2OH-CO-(CHOH)4-CH2OH}\] is an example of ______.
\[\ce{CH2OH - CO - (CHOH)4 - CH2OH}\] is an example of ______.
Given below are two statements.
Statement I - Lactose on hydrolysis converts into glucose and galactose.
Statement II - Galactose also plays same role as glucose in respiration.
In light of the above statements, select the correct option given below.
The sugar found in milk is ______.
