Advertisements
Advertisements
Question
What is the action of the following reagents on glucose?
hydrogen iodide
Advertisements
Solution
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
RELATED QUESTIONS
Give scientific reasons:
The disaccharide sucrose gives negative Tollens test while the disaccharide maltose gives a positive Tollens test.
The glycosidic linkage in maltose is formed between _______________
Write chemical reaction for following conversions
glucose into glucoxime
Which of the following type of carbohydrates cannot be hydrolyzed?
Identify the bond that links the carbon of two adjacent monosaccharides.
Formation of lactose by conden ation results in the release of how many molecules of water?
______ is the prosthetic group of glycoproteins.
Fructose is the fruit sugar and chemically it is ketohexose but it has a ______ rather than a ______.
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 |
Monosaccharides are ______ in nature.
Which one of the following is an oligosaccharide?
The general formula for polysaccharide is ____________.
Which among the following reagents is used to confirm the presence of carbonyl group in glucose?
Which of the following statement is NOT true about saccharic acid?
On hydrolysis sucrose gives ____________.
Which among the following reagents is used for conversion of glucose to glucoxime?
Which among the following is a product of hydrolysis of one mole raffinose?
The number of sp2 and sp3 hybridised carbon in fructose are respectively ____________.
Which of the following groups contain polysaccharides?
The molecule of glucose is also called ______.
Lactose is made of ______.
Which one is a non-reducing commercial sugar?
The glycosidic linkage present in maltose is ______.
Why carbohydrates are generally optically active.
Why carbohydrates are generally optically active.
CH2 OH - CO - (CHOH)4 - CH2 OH is an example of ______.
Why carbohydrates are generally optically active.
Why carbohydrates are generally optically active.
