Question:
Compound $A , C _5 H _{10} O _5$, given a tetraacetate with $AC _2 O$ and oxidation of $A$ with $Br _2- H _2 O$ gives an acid, $C _5 H _{10} O _6$ Reduction of $A$ with $HI$ gives isopentane The possible structure of $A$ is:
Compound $A , C _5 H _{10} O _5$, given a tetraacetate with $AC _2 O$ and oxidation of $A$ with $Br _2- H _2 O$ gives an acid, $C _5 H _{10} O _6$ Reduction of $A$ with $HI$ gives isopentane The possible structure of $A$ is:
Show Hint
The oxidation and reduction of sugars can help identify functional groups and their positions in the molecule.
Updated On: Mar 21, 2025
Hide Solution
Verified By Collegedunia
The Correct Option is C
Solution and Explanation
The compound \( A \) is a sugar derivative, and based on the given reactions:
- The reaction with \( \text{Ac}_2\text{O} \) suggests the presence of hydroxyl groups.
- Oxidation with \( \text{Br}_2 - \text{H}_2\text{O} \) gives an acid, indicating that a terminal hydroxyl group is present.
- Reduction with HI gives isopentane, suggesting a pentose structure.
The correct structure for \( A \) is option (1).
So , the correct option is (C) :
Was this answer helpful?
2
9
Top Questions on Biomolecules
- Write the reaction of D-Glucose with the following:
(a) HCN (b) Br$_2$ water (c) (CH$_3$CO)$_2$O- CBSE CLASS XII - 2025
- Chemistry
- Biomolecules
- Write two differences between DNA and RNA.
- CBSE CLASS XII - 2025
- Chemistry
- Biomolecules
- Assertion (A): Vitamin C cannot be stored in our body.
Reason (R): Vitamin C is water soluble and excreted in urine.- CBSE CLASS XII - 2025
- Chemistry
- Biomolecules
- Deficiency of vitamin B$_1$ causes the disease :
- CBSE CLASS XII - 2025
- Chemistry
- Biomolecules
- Peptide linkage and Glycosidic linkage
- CBSE CLASS XII - 2025
- Chemistry
- Biomolecules
View More Questions
Questions Asked in JEE Main exam
- CrCl\(_3\).xNH\(_3\) can exist as a complex. 0.1 molal aqueous solution of this complex shows a depression in freezing point of 0.558°C. Assuming 100\% ionization of this complex and coordination number of Cr is 6, the complex will be:
- JEE Main - 2025
- Colligative Properties
- Suppose that the number of terms in an A.P. is \( 2k, k \in \mathbb{N} \). If the sum of all odd terms of the A.P. is 40, the sum of all even terms is 55, and the last term of the A.P. exceeds the first term by 27, then \( k \) is equal to:
- JEE Main - 2025
- Arithmetic Progression
- If \( \alpha + i\beta \) and \( \gamma + i\delta \) are the roots of the equation \( x^2 - (3-2i)x - (2i-2) = 0 \), \( i = \sqrt{-1} \), then \( \alpha\gamma + \beta\delta \) is equal to:
- JEE Main - 2025
- Complex numbers
- Let \( [x] \) denote the greatest integer function, and let \( m \) and \( n \) respectively be the numbers of the points, where the function \( f(x) = [x] + |x - 2| \), \( -2<x<3 \), is not continuous and not differentiable. Then \( m + n \) is equal to:
- JEE Main - 2025
- Differential Equations
- Let \( f(x) = \frac{x - 5}{x^2 - 3x + 2} \). If the range of \( f(x) \) is \( (-\infty, \alpha) \cup (\beta, \infty) \), then \( \alpha^2 + \beta^2 \) equals to.
- JEE Main - 2025
- Functions
View More Questions
Concepts Used:
Biomolecules
Biomolecules are the most essential organic molecules, which are involved in the maintenance and metabolic processes of living organisms. These non-living molecules are the actual foot-soldiers of the battle of sustenance of life.
There are four major classes of Biomolecules – Carbohydrates, Proteins, Nucleic acids and Lipids.
- Carbohydrates are chemically defined as polyhydroxy aldehydes or ketones or compounds which produce them on hydrolysis.
- Proteins are another class of indispensable biomolecules, which make up around 50per cent of the cellular dry weight. Proteins are polymers of amino acids arranged in the form of polypeptide chains. The structure of proteins is classified as primary, secondary, tertiary and quaternary in some cases.
- Nucleic acids refer to the genetic material found in the cell that carries all the hereditary information from parents to progeny. There are two types of nucleic acids namely, deoxyribonucleic acid (DNA) and ribonucleic acid (RNA). The main function of nucleic acid is the transfer of genetic information and synthesis of proteins by processes known as translation and transcription.
- Lipids are organic substances that are insoluble in water, soluble in organic solvents, are related to fatty acids and are utilized by the living cell.