Advertisements
Advertisements
प्रश्न
Draw the Haworth projection structure of the following.
α-D-(–)-Fructofuranose
Advertisements
उत्तर
Haworth projection formula of α-D-(–)-fructofuranose:
APPEARS IN
संबंधित प्रश्न
Give scientific reasons:
Hydrolysis of sucrose is called inversion.
Explain the classification of carbohydrates with examples.
Explain D and L configuration in sugars.
Draw the structure of the pyran.
Which of the following type of carbohydrates cannot be hydrolyzed?
Identify the bond that links the carbon of two adjacent monosaccharides.
Identify the given structure 'P' and 'Q'.
Formation of lactose by conden ation results in the release of how many molecules of water?
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 the WRONG statement.
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 |
Chitin is a/an ______.
Monosaccharides are ______ in nature.
Identify the CORRECT combination.
Which among the following type of linkages is present in cellulose?
Raffinose, sucrose and stachyose are respectively ____________.
4-O-(α-D-Glucopyranosyl)-D-glucopyranose is ____________.
Which of the following monosaccharide is a ketohexose?
Which one of the following is generally applicable to polysaccharides?
Which one of the following carbohydrates is insoluble in water?
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?
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?
On hydrolysis sucrose gives ____________.
What is the molecular formula of glyceraldehyde?
Which among the following reagents is used to obtain gluconic acid from glucose?
Identify the product Y in the following reaction.
\[\ce{Maltose ->[Hydrolysis] X ->[dil. HNO3][(excess)] Y}\]
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.
Why carbohydrates are generally optically active?
Classify the following into monosaccharides, oligosaccharides and polysaccharides.
Starch
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 ______.
Which carbon atoms of fructose are bonded together through oxygen forming fructofuranose?
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 ______.
\[\ce{CH2OH-CO-(CHOH)4-CH2OH}\] is an example of ______.
Describe the action of the following reagent on glucose:
dil. Nitric acid.
Carbohydrates that do not undergo hydrolysis further are called ______.
CH2 OH - CO - (CHOH)4 - CH2 OH is an example of ______.
Why carbohydrates are generally optically active.
Why carbohydrates are generally optically active.
Why carbohydrates are generally optically active?
Why carbohydrates are generally optically active?
Why carbohydrates are generally optically active.
What are the number of chiral carbon atoms and the number of formyl groups, respectively, present in ribose?
