Advertisements
Advertisements
Question
What happens when D-glucose is treated with the following reagent?
HNO3
Advertisements
Solution
On being treated with HNO3, D-glucose get oxidised to give saccharic acid.
\[\begin{array}{cc}
\phantom{}\ce{CHO}\phantom{...........}\ce{COOH}\phantom{.}\\
\phantom{.}|\phantom{................}|\phantom{.......}\\
\ce{(CHOH)4 ->[HNO3] (CHOH)4}\\
\phantom{.}|\phantom{................}|\phantom{.......}\\
\phantom{..}\ce{\underset{D-glucose}{CH2OH}}\phantom{........}\ce{\underset{Saccharic acid}{COOH}}\phantom{.}
\end{array}\]
APPEARS IN
RELATED QUESTIONS
What do you understand by the term glycosidic linkage?
Answer the following question.
Write the products obtained after the hydrolysis of lactose.
Which of the following is a disaccharide?
The sugar that is characteristic of milk is ____________.
Which one is a disaccharide?
The commonest disaccharide has the molecular formula:
Maltose and glucose are ____________.
Sucrose on hydrolysis gives:
Which of the following has not a glucosidic linkage?
Which one of the following statement is correct about sucrose?
In disaccharides, if the reducing groups of monosaccharides i.e. aldehydic or ketonic groups are bonded, these are non-reducing sugars. Which of the following disaccharide is a non-reducing sugar?
Lactose on hydrolysis yields
Which disaccharide is present in milk?
Which of the following is a reducing sugar?
Which of the following will not show mutarotation?
Hydrolysis of sucrose is called ______.
When sucrose is hydrolysed the optical rotation values are measured using a polarimeter and are given in the following table:
| S. No. | Time (hours) | Specific Rotation |
| 1 | 0 | + 66.5° |
| 2 | ∞ | - 39.9° |
- Account for the two specific rotation values.
- What is the specific name given to sucrose based on the above observation?
- One of the products formed during the hydrolysis of sucrose is a glucose, that reacts with hydroxylamine to give compound A. Identify compound A.
