English

What is the action of the following reagents on glucose? hydroxylamine

Advertisements
Advertisements

Question

What is the action of the following reagents on glucose?

hydroxylamine

Short/Brief Note
Advertisements

Solution

Glucose forms oxime by reaction with hydroxylamine:

\[\begin{array}{cc}
\phantom{}\ce{CHO}\phantom{..............}\ce{CH = N - OH}\phantom{..}\\
\phantom{.}|\phantom{..................}|\phantom{...............}\\
\ce{(CHOH)4 ->[NH2 - OH](CHOH)4 + H2O}\\
\phantom{}|\phantom{..................}|\phantom{..............}\\
\phantom{}\ce{\underset{\text{Glucose}}{CH2OH} \phantom{..........}\underset{\text{Oxime}}{CH2OH}}\phantom{........}
\end{array}\]

shaalaa.com
  Is there an error in this question or solution?
Chapter 14: Biomolecules - Short Answer Questions (Type-II)

APPEARS IN

SCERT Maharashtra Chemistry [English] Standard 12 Maharashtra State Board
Chapter 14 Biomolecules
Short Answer Questions (Type-II) | Q 2.2

RELATED QUESTIONS

Give scientific reasons:

The disaccharide sucrose gives negative Tollens test while the disaccharide maltose gives a positive Tollens test.


Draw a neat diagram for the following:

Haworth formula of maltose


Glucose on oxidation with dilute nitric acid gives _______________


The glycosidic linkage in maltose is formed between _______________


Write chemical reaction for following conversions

glucose into glucoxime


Write chemical reaction for following conversions

glucose into gluconic acid


Classify the following carbohydrates into monosaccharide, disaccharide, oligosaccharide and polysaccharide:

glucose, cellulose, maltose, stachyose


Define carbohydrates.


Write a commercial method for preparation of glucose.


Identify the given structure 'P' and 'Q'.


From the following identify an example of disaccharides.


Which of the following monosaccharides is a tetrose sugar?


Carbohydrates can contain which of the following chemical groups?


From the following which is a heteropolysaccharide?


Fructose is the fruit sugar and chemically it is ketohexose but it has a ______ rather than a ______.


Identify a non-reducing carbohydrate from the following.


Which is the product obtained, when Br2 water reacts with glucose?


Chitin is a/an ______.


From the following identify the two types of glucose polymers present in starch.


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 reagent among the following is used to confirm presence of aldehydic carbonyl group in glucose?


Which carbon atoms of α- D glucopyranose and β-D-fructofuranose respectively are linked together to form glycosidic linkage in sucrose?


Stachyose is ____________.


\[\ce{CH3 - CH2 - CH2 - Br ->[Na][dry ether] A ->[Cl2] B}\]

Identify the product B in the above reaction.


Glucose and gluconic acid treated with dilute nitric acid forms saccharic acid. What does this indicate?


What is the number of hydroxyl groups present in lactic acid?


Identify the number of secondary carbon atoms in glucose.


When 2 moles of stachyose is hydrolyzed, the number of moles of galactose obtained is ____________.


Which among the following reagents is used to confirm the presence of carbonyl group in glucose?


Which of the following statement is NOT true about saccharic acid?


What is the quantity of glucose obtained when 68.4 g of sucrose is hydrolyzed in laboratory under ideal condition?
(Molar mass of sucrose = 342 g mol−1)


How many hydroxyl groups are present in Erythrulose?


Which one given below is a non-reducing sugar?


\[\ce{Glucose ->[(HCN)] Product ->[(hydrolysis)] Product ->[(HI + Heat)] A}\], the compound A is:


Which of the following are epimers?


Why carbohydrates are generally optically active?


Classify the following into monosaccharides, oligosaccharides and polysaccharides.

Lactose


Classify the following into monosaccharides, oligosaccharides and polysaccharides.

Maltose


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.


\[\ce{CH2OH-CO-(CHOH)4-CH2OH}\] is an example of ______.


Why carbohydrates are generally optically active?


Write Fischer projection formulae for glucose.


Why carbohydrates are generally optically active.


The linkage present in Lactose is ______.


CH2 OH - CO - (CHOH)4 - CH2 OH is an example of ______.


Why are carbohydrates generally optically active?


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?


The sugar found in milk is ______.


Share
Notifications

Englishहिंदीमराठी


      Forgot password?
Use app×