Sage-Tips

Why does glucose do not react with NaHSO3?

Glucose consists of an aldehyde group. However, it does not undergo reaction with sodium hydrogen sulphite in order to form bisulphite addition products. This is due to the fact that this reaction occurs in the presence of a free aldehyde group, but there is no free $ – CHO$ group present in the structure of glucose.

Does glucose react with NaHSO3?

Glucose does not react with NaHSO3.

Why glucose does not react with ammonia?

This is because glucose is present in the form of ring, so there is no free -CHO group.

Does glucose react with NH3?

Glucose also reacts with NH 3 to form 2,6-DF as shown in Figure 3. Both reactions are associated with the formation of relatively high yields of browning polymers in which reactive molecules formed as intermediates between the sugar and NH 3 condense to produce macromolecules (6).

Why glucose does not react with Schiff reagent?

Glucose does not react with Schiff’s reagent and 2,4 DNP reagent although it has an aldehydic group. In these forms, a free aldehyde group is not present. So, it does not give the reaction of the aldehydic group.

Why glucose does not react with nh2oh?

This happens as the cyclic structure of glucose forms an open chain structure in an aqueous medium, which then reacts with NH2OH to give an oxime. But pentaacetate of D-glucose does not react with NH2OH. This is because pentaacetate does not form an open chain structure.

Does glucose react with NaHSO3 and NH3?

Glucose does not react with NaHSO3 and NH3.

Which of the following react with glucose NaHSO3?

Glucose does not react with NaHSO3 and NH3. Why? – Quora. Yes. aldehydic group reacts with bisulphates to form products but in case of glucose its aldehyde is not free.

Which of the following compounds will not react with nahso3?

Sodium Bisulphite reacts with carbonyl compounds majorly with aldehydes and ketones having a small aliphatic chain. It generally does not react with aromatic ketones due to steric hindrance posed by the large sized benzene ring.

Which does not react with nahso3?

Which reagent does not react with glucose?

2,4-DNP.

Does glucose react with nh2oh?

When glucose reacts with hydroxylamine, oxime is formed and cyanohydrins are formed on the addition of hydrogen cyanide to it. This reaction can confirm the presence of carbonyl group in glucose.