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प्रश्न
Draw the structure of the pyran.
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उत्तर
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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.
Glucose on oxidation with dilute nitric acid gives _______________
The glycosidic linkage in maltose is formed between _______________
Draw the structure of α-D glucopyranose.
Explain the preparation of glucose from sucrose.
Write chemical reaction for following conversions
glucose into gluconic acid
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 commercial method for preparation of glucose.
Which of the following type of carbohydrates cannot be hydrolyzed?
Identify the bond that links the carbon of two adjacent monosaccharides.
From the following identify an example of disaccharides.
Which of the following monosaccharides is a tetrose sugar?
Which of the following carbohydrate is sweet to taste?
Formation of lactose by conden ation results in the release of how many molecules of water?
The reserve food material in animals is ____________.
Identify the WRONG statement.
Which is the product obtained, when Br2 water reacts with glucose?
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.
Identify the CORRECT combination.
Which one of the following is a carbohydrate but does NOT follow the general formula of carbohydrate?
Which of the following statements is NOT true for glyceraldehyde?
Which of the following molecules reduces Fehling's solution?
The correct corresponding order of names of four aldoses with configuration given below Respectively is:
\[\ce{Glucose ->[(HCN)] Product ->[(hydrolysis)] Product ->[(HI + Heat)] A}\], 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.
What are reducing and non-reducing sugars?
Classify the following into monosaccharides, oligosaccharides and polysaccharides.
Lactose
Which of the following groups contain polysaccharides?
The molecule of glucose is also called ______.
Lactose is made of ______.
Glucose on oxidation with bromine water yields gluconic acid. This reaction confirms the presence of ______.
The two monosaccharides in a disaccharide are held together by ______ bonds.
Which carbon atoms of fructose are bonded together through oxygen forming fructofuranose?
Identify the monosaccharide containing only one asymmetric carbon atom in its molecule.
Which one is a non-reducing commercial sugar?
Identify the product obtained in the following conversion.
\[\ce{Glucose ->[(O)][Br2 water] Product}\]
\[\ce{CH2OH - CO - (CHOH)4 - CH2OH}\] is an example of ______.
Why carbohydrates are generally optically active.
Carbohydrates that do not undergo hydrolysis further are called ______.
Write the ring structure of glucose.
The linkage present in Lactose is ______.
Why carbohydrates are generally optically active?
Why carbohydrates are generally optically active.
\[\ce{CH2OH - CO - (CHOH)4 - CH2 OH}\] is an example of ______.
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 ______.
