Methyl orange is the example of which type of dye

Options

A. acid dye
B. mordant dye
C. azo dye
D. both (a) and (c) .

Explanation

To determine the type of dye that methyl orange is, we can follow these steps:

### Step 1: Understand what methyl orange is
Methyl orange is a pH indicator commonly used in titrations due to its distinct color change at different pH levels.

**Hint:** Remember that pH indicators change color based on the acidity or basicity of the solution.

### Step 2: Identify the color changes of methyl orange
In acidic solutions, methyl orange appears red, while in basic solutions, it appears yellow. This color change is crucial for its function as an indicator.

**Hint:** Pay attention to the color changes as they are indicative of the dye's properties.

### Step 3: Classify methyl orange based on its chemical structure
Methyl orange has a specific chemical structure that includes a sulfonic acid group (SO3H) and an azo group (N=N). The presence of the azo group indicates that it belongs to the class of azo dyes.

**Hint:** Look for functional groups in the structure that can help classify the dye.

### Step 4: Determine the acidity of methyl orange
Due to the presence of the sulfonic acid group, methyl orange exhibits acidic properties, which classifies it as an acid dye.

**Hint:** Consider how functional groups affect the chemical behavior of compounds.

### Step 5: Combine the classifications
Since methyl orange has both the azo group and the sulfonic acid group, it can be classified as both an azo dye and an acid dye.

**Hint:** If a compound fits into more than one category, it is important to acknowledge all applicable classifications.

### Conclusion
Methyl orange is classified as both an acid dye and an azo dye. Therefore, the correct answer is that it is both A and C.

**Final Answer:** Methyl orange is an example of both an acid dye and an azo dye.