Advertisements
Advertisements
प्रश्न
What is the action of the following reagents on glucose?
hydrogen iodide
Advertisements
उत्तर
Glucose gives n-hexane on prolonged heating with hydrogen iodide, HI.
\[\ce{\underset{\text{Glucose}}{CHO(CHOH)4CH2OH} ->[\Delta,HI] \underset{\text{n-Hexane}}{CH3-(CH2)4-CH3}}\]
APPEARS IN
संबंधित प्रश्न
\[\ce{CH2OH-CO-(CHOH)4-CH2OH}\] is an example of ______.
Draw a neat diagram for the following:
Haworth formula of glucopyranose.
The glycosidic linkage in maltose is formed between _______________
Write chemical reaction for following conversions
glucose into gluconic acid
What is the action of the following reagents on glucose?
acetic anhydride
Define carbohydrates.
Write a chemical reaction to convert glucose into glucose cyanohydrin.
What is monosaccharide?
Which of the following type of carbohydrates cannot be hydrolyzed?
From the following identify an example of disaccharides.
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 monosaccharides is a tetrose sugar?
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?
______ is the prosthetic group of glycoproteins.
Identify the WRONG statement.
Identify a non-reducing carbohydrate from the following.
All these carbohydrates contain \[\ce{1 -> 4β}\] glycosidic linkage, EXCEPT ____________.
Identify the INCORRECT statement regarding glucose.
Which of the following monosaccharide is a ketohexose?
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 a carbohydrate but does NOT follow the general formula of carbohydrate?
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 following reagent is used to detect presence of five hydroxyl groups in a glucose molecule?
Which among the following statements is true for amylose?
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?
On hydrolysis sucrose gives ____________.
Which among the following sugars does not reduce Tollen's reagent?
What is the product obtained when Br2 water reacts with glucose?
The correct corresponding order of names of four aldoses with configuration given below Respectively is:
Which one given below is a non-reducing sugar?
\[\ce{Glucose ->[(HCN)] Product ->[(hydrolysis)] Product ->[(HI + Heat)] A}\], the compound A is:
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.
Starch
Classify the following into monosaccharides, oligosaccharides and polysaccharides.
Lactose
Write the structure of α-D (+) glucopyranose.
If 'n' represents total number of asymmetric carbon atoms in a compound, then the possible· number of optical isomers of the compound is ______.
Lactose is made of ______.
A molecule of stachyose contains how many carbon atoms?
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 ______.
\[\ce{CH2OH-CO-(CHOH)4-CH2OH}\] is an example of ______.
Why carbohydrates are generally optically active?
Write Fischer projection formulae for glucose.
The linkage present in Lactose is ______.
Why carbohydrates are generally optically active.
Why carbohydrates are generally optically active?
\[\ce{CH2OH - CO - (CHOH)4 - CH2OH}\] is an example of ______.
Given below are two statements.
Statement I - Lactose on hydrolysis converts into glucose and galactose.
Statement II - Galactose also plays same role as glucose in respiration.
In light of the above statements, select the correct option given below.
