Question

Which of the following statements is not true about glucose?

• A. It is an aldohexose.
• B. On heating with HI it forms $n$-hcxane.
• C. It is present in furanose form.
• D. It does not give $2,4-DNP$ test.

Answer 1

The Correct Option is C

Glucose is present is pyranose form (six membered cyclic structure).

Answer 2

Ans. Since glucose has six carbon atoms and an aldehyde group, it is an aldohexose. It exists in the pyranose form only; the furanose form is not present. It has a six-membered ring cyclic structure that is comparable to the chemical molecule pyran.

• Glucose is a monosaccharide that is found in carbohydrates such as table sugar and starch. 
• It is also known as blood sugar or grape sugar. 
• It forms a pyranose ring structure and is represented as a ring of six members. 
• Being aldohexose, it is the body’s primary and preferred source of energy. 
• Glucose is mainly found in starch compounds.
• Glucose is a group of carbohydrates of a simple sugar with the chemical formula C₆H₁₂O₆. 
• It is made up of an aldehyde group and 6 carbon atoms, so it’s also called aldohexose. 
• It exists in two forms which are either Ring (cyclic) form or open-chain (acyclic) form. 
• Glucose is a major source of energy for a lot of living organisms. 
• It is prepared by plants and algae with the help of water, sunlight, and carbon dioxide during photosynthesis. 
• It is found naturally in honey and fruits. 
• The glycogenolysis process is used to obtain glucose present in animals.
• D-glucose and L-glucose are composed of similar atoms. 
• The sole difference between these two structures is often displayed using the Fisher model. 
• In the Fisher model, unlike D-glucose, the hydrogen and oxygen group of atoms present in L-glucose points to the left. 
• If these two specific molecules faced one another, they might appear as a mirrored image of one another.