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महाराष्ट्र राज्य शिक्षण मंडळएचएससी विज्ञान (सामान्य) इयत्ता १२ वी

CHA2OH−CO−(CHOH)A4−CHA2OH is an example of ______.

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प्रश्न

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

पर्याय

  • Aldohexose

  • Aldoheptose

  • Ketotetrose

  • Ketoheptose

MCQ
रिकाम्या जागा भरा
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उत्तर

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

Explanation:

Ketoheptose → \[\begin{array}{cc}
\phantom{....}\ce{CH2 - OH}\\
|\phantom{.....}\\
\phantom{}\ce{C = O}\\
|\phantom{.....}\\
\phantom{..}\ce{(CHOH)4}\\
|\phantom{.....}\\
\phantom{...}\ce{CH2OH}
\end{array}\]

 

Aldohexose Glucose → \[\begin{array}{cc}
\phantom{}\ce{CHO}\\
|\phantom{....}\\
\phantom{...}\ce{(CHOH)4}\\
|\phantom{....}\\
\phantom{...}\ce{CH2OH}
\end{array}\]

Ketoheptose →  Ketone group and 7 carbon present

Ketotetrose → Ketone group and 4 carbon present

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पाठ 14: Biomolecules - Exercises [पृष्ठ ३२०]

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बालभारती Chemistry [English] Standard 12 Maharashtra State Board
पाठ 14 Biomolecules
Exercises | Q 1. i. | पृष्ठ ३२०

व्हिडिओ ट्यूटोरियलVIEW ALL [2]

संबंधित प्रश्‍न

The glycosidic linkage in maltose is formed between _______________


Draw the structure of α-D glucopyranose.


Write chemical reaction for following conversions

glucose into glucoxime


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?

hydroxylamine


What is monosaccharide?


By which of the following process formation of glycosidic bond occurs?


Identify the bond that links the carbon of two adjacent monosaccharides.


From the following identify an example of disaccharides.


Which of the following carbohydrate is sweet to taste?


From the following identify the group that is exclusively consists of polysaccharides.


______ is the prosthetic group of glycoproteins.


Identify the sugar having the molecular formula C6H1206.


From the following identify the materials that are made up of cellulose.

i. Plant cell wall

ii. Exoskeleton of arthropods

iii. Paper from plant pulp

iv. Cotton fibre


Identify the WRONG statement.


Which among the following compounds is obtained when glucose reacts with hydrogen cyanide?


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

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


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


One mole of a carbohydrate on hydrolysis gives one mole of glucose and one mole of galactose. Identify the carbohydrate.


Which element among the following is not present in saccharine?


Which one of the following is an oligosaccharide?


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 is Tetrose sugar? 


Which one of the following is NOT soluble in water?


How many moles of fructose and galactose respectively are obtained on hydrolysis of 1 mole stachyose?


Identify the number of secondary carbon atoms 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)


Which among the following is a product of hydrolysis of one mole raffinose?


How many hydroxyl groups are present in Erythrulose?


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


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.


Glucose is an aldose. Which one of the following reactions is not expected with glucose?


Why carbohydrates are generally optically active?


Classify the following into monosaccharides, oligosaccharides and polysaccharides.

Sucrose


Classify the following into monosaccharides, oligosaccharides and polysaccharides.

Maltose


Is the following sugar, D-sugar or L-sugar?


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 ______.


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.


Explain the hydrolysis of sucrose.


Why carbohydrates are generally optically active.


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


Why carbohydrates are generally optically active.


Why carbohydrates are generally optically active.


Two monosaccharides are held together by ______ bond.


What are the number of chiral carbon atoms and the number of formyl groups, respectively, present in ribose?


The sugar found in milk is ______.


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