Quiz What happens when glucose reacts with bromine water ? Write chemical…

What happens when glucose reacts with bromine water ? Write chemical…

CBSE Chemistry class 12 question and answer | What happens when glucose reacts with bromine water ? Write chemical equation.

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February 27, 2024

What happens when glucose reacts with bromine water ? Write chemical equation.

Ans.

When glucose reacts with bromine water ( $Br_{2}$ dissolved in water), it undergoes bromination. This reaction involves the substitution of hydrogen atoms in the glucose molecule with bromine atoms.

The chemical equation for the reaction of glucose with bromine water is as follows:

$C_{6} H_{12} O_{6} + Br_{2} \to C_{6} H_{10} O_{6} Br_{2} + 2 HBr$

In this reaction, one or more hydrogen atoms on the glucose molecule are replaced by bromine atoms to form 6-bromo-6-deoxyglucose (also known as glucobromo). The hydrogen atoms that are substituted are generally present on the hydroxyl groups (-OH) of the glucose molecule. The result is the formation of hydrogen bromide (HBr) as a byproduct.