मराठी
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

Draw a neat diagram for the following:

Haworth formula of maltose


Write the name of the polysaccharide used for the commercial preparation of glucose.


Write chemical reaction for following conversions

glucose into gluconic acid


Define carbohydrates.


Explain D and L configuration in sugars.


Write a chemical reaction to convert glucose into glucose cyanohydrin.


What is monosaccharide?


Draw the structure of the pyran.


Which of the following type of carbohydrates cannot be hydrolyzed?


Formation of lactose by conden ation results in the release of how many molecules of water?


Carbohydrates can contain which of the following chemical groups?


The reserve food material in animals is ____________.


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


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


By which of the following feature we can identify the relatively small DNA molecules of plasmids?


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 ____________.


____________ do not give smaller sugar units on hydrolysis.


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

The general formula for polysaccharide is ____________.


Which one of the following is Tetrose sugar? 


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


Which among the following statements is true for amylose?


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 reagents is used for conversion of glucose to glucoxime?


What is the molecular formula of glyceraldehyde?


Identify the product Y in the following reaction.

\[\ce{Maltose ->[Hydrolysis] X ->[dil. HNO3][(excess)] Y}\]


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:


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.


What are reducing and non-reducing sugars?


Classify the following into monosaccharides, oligosaccharides and polysaccharides.

Starch


Classify the following into monosaccharides, oligosaccharides and polysaccharides.

Sucrose


Which of the following groups contain polysaccharides?


Lactose is made of ______.


A molecule of stachyose contains how many carbon atoms?


The two monosaccharides in a disaccharide are held together by ______ bonds.

 


Starch and cellulose are compounds made up of many units of ______.


Formation of gluconic acid from glucose by oxidation using Br2 water.


The glycosidic linkage present in maltose is ______.


Why carbohydrates are generally optically active.


Why carbohydrates are generally optically active.


Why carbohydrates are generally optically active?


Describe the action of the following reagent on glucose:

dil. Nitric acid.


Explain the hydrolysis of sucrose.


Why carbohydrates are generally optically active.


Why are carbohydrates generally optically active?


Why carbohydrates are 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?


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