Ozone is obtained from oxygen

Options

A. By oxidation at high temperature
B. By oxidation using a catalyst
C. By silent electric discharge
D. By conversion at high pressure

Explanation

To solve the question "Ozone is obtained from oxygen," we will follow these steps:

### Step-by-Step Solution:

1. **Identify the Source of Ozone**:
Ozone (O₃) is a molecule composed of three oxygen atoms. It is formed from diatomic oxygen (O₂), which is the form of oxygen that we breathe.

**Hint**: Remember that ozone is a triatomic molecule, while the most common form of oxygen is diatomic.

2. **Understand the Process of Formation**:
Ozone is produced from oxygen through a specific process known as silent electric discharge. This process involves the application of a high voltage to oxygen gas, which causes the O₂ molecules to split and recombine to form ozone.

**Hint**: Think about how energy can change the state of molecules and lead to the formation of different compounds.

3. **Describe the Role of Silent Electric Discharge**:
Silent electric discharge is a method of generating ozone without producing sparks. It uses a low amount of heat energy and creates an electric field that facilitates the conversion of O₂ to O₃.

**Hint**: Consider how electricity can influence chemical reactions and the importance of controlling the energy input.

4. **Write the Chemical Reaction**:
The chemical reaction can be represented as:
\[ 3 O_2 \xrightarrow{\text{silent electric discharge}} 2 O_3 \]
This indicates that three molecules of oxygen gas yield two molecules of ozone.

**Hint**: Pay attention to the stoichiometry of the reaction, as it shows the relationship between the reactants and products.

5. **Select the Correct Option**:
Based on the information provided, the correct answer to the question is that ozone is obtained from oxygen via silent electric discharge.

**Hint**: Always refer back to the processes and reactions discussed to confirm your answer.

### Final Answer:
Ozone is obtained from oxygen by silent electric discharge.

**Correct Option**: C