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प्रश्न
Write chemical reaction for following conversions
glucose into gluconic acid
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उत्तर
Glucose gets oxidised to a six carbon monocarboxylic acid called gluconic acid on reaction with bromine water which is a mild oxidizing agent.
\[\begin{array}{cc}
\phantom{}\ce{CHO}\phantom{...................}\ce{COOH}\phantom{.}\\
\phantom{}|\phantom{.......................}|\phantom{......}\\
\phantom{}\ce{(CHOH)4 + [O] ->[Br2 water]\phantom{}(CHOH)4}\phantom{}\\
\phantom{}|\phantom{.......................}|\phantom{......}\\
\phantom{..}\ce{\underset{\text{Glucose}}{CH2OH} \phantom{...............}\underset{\text{Gluconic acid}}{CH2OH}}\phantom{}
\end{array}\]
APPEARS IN
संबंधित प्रश्न
\[\ce{CH2OH-CO-(CHOH)4-CH2OH}\] is an example of ______.
Give two evidences for presence of formyl group in glucose.
Draw a neat diagram for the following:
Haworth formula of glucopyranose.
Write the name of the unit to which glucose unit is linked to from sucrose.
Explain the classification of carbohydrates with examples.
What is the action of the following reagents on glucose?
acetic anhydride
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.
From the following identify an example of disaccharides.
Identify the substances having glycosidic bond and peptide bond, respectively in their structure:
Which of the following monosaccharides is a tetrose sugar?
Carbohydrates can contain which of the following chemical groups?
From the following identify the group that is exclusively consists of polysaccharides.
Identify the WRONG statement.
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?
4-O-(α-D-Glucopyranosyl)-D-glucopyranose is ____________.
Identify the INCORRECT statement regarding glucose.
One mole of a carbohydrate on hydrolysis gives one mole of glucose and one mole of galactose. Identify the carbohydrate.
Which of the following monosaccharide is a ketohexose?
Which of the following statements is NOT true for glyceraldehyde?
Which of the following molecules reduces Fehling's solution?
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 of the following statement is NOT true about saccharic acid?
On hydrolysis sucrose gives ____________.
Identify the number of oxygen atoms present in saccharic acid?
Which among the following reagents is used for conversion of glucose to glucoxime?
Which among the following reagents is used to obtain gluconic acid from glucose?
Identify the product Y in the following reaction.
\[\ce{Maltose ->[Hydrolysis] X ->[dil. HNO3][(excess)] Y}\]
How many hydroxyl groups are present in Erythrulose?
Which among the following observations suggests that glucose also exists in cyclic form?
Which one given below is a non-reducing sugar?
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.
Complete hydrolysis of cellulose gives ____________.
Glucose is an aldose. Which one of the following reactions is not expected with glucose?
Which of the following are epimers?
Classify the following into monosaccharides, oligosaccharides and polysaccharides.
Lactose
The molecule of glucose is also called ______.
If 'n' represents total number of asymmetric carbon atoms in a compound, then the possible· number of optical isomers of the compound is ______.
A molecule of stachyose contains how many carbon atoms?
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 ______.
\[\ce{CH2OH - CO - (CHOH)4 - CH2OH}\] is an example of ______.
Why carbohydrates are generally optically active.
Describe the action of the following reagent on glucose:
dil. Nitric acid.
Why carbohydrates are generally optically active?
Why carbohydrates are generally optically active.
The sugar found in milk is ______.
