Advertisements
Advertisements
प्रश्न
Define carbohydrates.
Advertisements
उत्तर
Carbohydrates are optically active polyhydroxy aldehydes or polyhydroxy ketones or compounds that can be hydrolysed to polyhydroxy aldehydes or polyhydroxy ketones.
APPEARS IN
संबंधित प्रश्न
Draw a neat diagram for the following:
Haworth formula of maltose
Explain the preparation of glucose from sucrose.
Explain the classification of carbohydrates with examples.
What is the action of the following reagents on glucose?
hydrogen iodide
Draw the Haworth projection structure of the following.
α-D-(–)-Fructofuranose
Explain D and L configuration in sugars.
Write a chemical reaction to convert glucose into glucose cyanohydrin.
Write a commercial method for preparation of glucose.
By which of the following process formation of glycosidic bond occurs?
Identify the substances having glycosidic bond and peptide bond, respectively in their structure:
Which enzymes would work sequentially on potatoes consumed by an individual?
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?
From the following identify the group that is exclusively consists of polysaccharides.
From the following which is a heteropolysaccharide?
______ is the prosthetic group of glycoproteins.
Identify the sugar having the molecular formula C6H1206.
By which of the following feature we can identify the relatively small DNA molecules of plasmids?
____________ do not give smaller sugar units on hydrolysis.
Monosaccharides are ______ in nature.
Which reagent among the following is used to confirm presence of aldehydic carbonyl group in glucose?
Raffinose, sucrose and stachyose are respectively ____________.
All these carbohydrates contain \[\ce{1 -> 4β}\] glycosidic linkage, EXCEPT ____________.
One mole of a carbohydrate on hydrolysis gives one mole of glucose and one mole of galactose. Identify the carbohydrate.
Which of the following monosaccharide is a ketohexose?
Which one of the following is an oligosaccharide?
Which one of the following is Tetrose sugar?
Which of the following statements is NOT true for glyceraldehyde?
Glucose and gluconic acid treated with dilute nitric acid forms saccharic acid. What does this indicate?
Which of the following molecules reduces Fehling's solution?
How many moles of fructose and galactose respectively are obtained on hydrolysis of 1 mole stachyose?
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?
Identify the number of oxygen atoms present in saccharic acid?
When one mole of lactose is hydrolysed, the hydrolysate contains ____________.
How many optical isomers are possible for a compound having four asymmetric carbon atoms?
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:
What are reducing and non-reducing sugars?
Write the structure of α-D (+) glucopyranose.
Corn is immersed in boiling water. It is then cooled, and the solution becomes sweet. It is due to ______.
Which one is a non-reducing commercial sugar?
Formation of gluconic acid from glucose by oxidation using Br2 water.
Identify the product obtained in the following conversion.
\[\ce{Glucose ->[(O)][Br2 water] Product}\]
\[\ce{CH2OH - CO - (CHOH)4 - CH2OH}\] is an example of ______.
\[\ce{CH2OH-CO-(CHOH)4-CH2OH}\] is an example of ______.
Describe the action of the following reagent on glucose:
Bromine water
Write Fischer projection formulae for glucose.
CH2 OH - CO - (CHOH)4 - CH2 OH is an example of ______.
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.
What are the number of chiral carbon atoms and the number of formyl groups, respectively, present in ribose?
