Advertisements
Advertisements
Question
What is the action of the following reagents on glucose?
acetic anhydride
Advertisements
Solution
Glucose reacts with acetic anhydride to form glucose pentaacetate.
APPEARS IN
RELATED QUESTIONS
\[\ce{CH2OH-CO-(CHOH)4-CH2OH}\] is an example of ______.
Give scientific reasons:
The disaccharide sucrose gives negative Tollens test while the disaccharide maltose gives a positive Tollens test.
Give scientific reasons:
Hydrolysis of sucrose is called inversion.
Draw a neat diagram for the following:
Haworth formula of glucopyranose.
The glycosidic linkage in maltose is formed between _______________
Define carbohydrates.
Draw the Haworth projection structure of the following.
α-D-(–)-Fructofuranose
By which of the following process formation of glycosidic bond occurs?
Which of the following type of carbohydrates cannot be hydrolyzed?
Identify the given structure 'P' and 'Q'.
Carbohydrates can contain which of the following chemical groups?
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 |
Identify the CORRECT combination.
Raffinose, sucrose and stachyose are respectively ____________.
Identify the INCORRECT statement regarding glucose.
Which one of the following is an oligosaccharide?
Stachyose is ____________.
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?
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 ____________.
On hydrolysis sucrose gives ____________.
Identify the number of oxygen atoms present in saccharic acid?
What is the molecular formula of glyceraldehyde?
Which among the following reagents is used to obtain gluconic acid from glucose?
Which among the following is a product of hydrolysis of one mole raffinose?
What is the product obtained when Br2 water reacts with glucose?
When one mole of lactose is hydrolysed, the hydrolysate contains ____________.
Which among the following observations suggests that glucose also exists in cyclic form?
\[\ce{Glucose ->[(HCN)] Product ->[(hydrolysis)] Product ->[(HI + Heat)] A}\], the compound A is:
What are reducing and non-reducing sugars?
Why carbohydrates are generally optically active?
Classify the following into monosaccharides, oligosaccharides and polysaccharides.
Starch
Classify the following into monosaccharides, oligosaccharides and polysaccharides.
Fructose
Is the following sugar, D-sugar or L-sugar?
Which carbon atoms of fructose are bonded together through oxygen forming fructofuranose?
Starch and cellulose are compounds made up of many units of ______.
Consider the following reaction
\[\ce{A <-[Br2 - H2O] Glucose ->[HNO3] B}\]
Here, 'A' and 'B' are respectively.
Why carbohydrates are generally optically active.
Why carbohydrates are generally optically active.
Write Fischer projection formulae for glucose.
Why carbohydrates are generally optically active.
Why carbohydrates are generally optically active.
Why are carbohydrates generally optically active?
Write the Zwitter ion structure of alanine.
\[\ce{CH2OH-CO-(CHOH)4-CH2OH}\] is an example of ______.
Why carbohydrates are generally optically active.
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.
