Glucose on reaction with `Br_(2)` water gives

Options

A. Glucaric acid
B. Gluconic acid
C. Saccharic acid
D. Citric acid

Answer

To solve the question regarding the reaction of glucose with bromine water, we can follow these steps:

### Step 1: Understand the Reactants
Glucose is a simple sugar (monosaccharide) with the molecular formula C₆H₁₂O₆. It contains an aldehyde functional group (-CHO) at one end of its structure.

### Step 2: Identify the Reaction
When glucose reacts with bromine water (Br₂ in water), it undergoes an oxidation reaction. Bromine water is a mild oxidizing agent that can oxidize aldehydes to carboxylic acids.

### Step 3: Write the Reaction
The aldehyde group (-CHO) in glucose will be oxidized to a carboxylic acid group (-COOH). The structure of glucose can be represented as:

\[ \text{Glucose: } CH_2OH - (CHOH)_4 - CHO \]

Upon reaction with bromine water, the aldehyde group will convert to a carboxylic acid, resulting in the formation of gluconic acid.

### Step 4: Determine the Product
The product formed from the oxidation of glucose by bromine water is gluconic acid, which has the structure:

\[ \text{Gluconic acid: } CH_2OH - (CHOH)_4 - COOH \]

### Final Answer
Thus, the reaction of glucose with bromine water gives gluconic acid.

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