Which of the following statement(s) is/are wrong ?

Options

A. Ozone is not responsible for green house effect
B. Ozone can oxidise sulphur dioxide present in the atmosphere to sulphur trioxide
C. Ozone hole is thinnig ozone layer present in stratosphere
D. Ozone is produced in upper stratosphere by the action of UV rays on oxygen

Explanation

To determine which of the statements is/are wrong, we will analyze each statement one by one.

### Step 1: Analyze the first statement
**Statement:** Ozone is not responsible for the greenhouse effect.

- **Explanation:** The greenhouse effect is caused by certain gases that trap infrared radiation from the sun. Ozone (O3) is indeed one of the greenhouse gases that contribute to this effect. Therefore, the statement that ozone is not responsible for the greenhouse effect is incorrect.

### Step 2: Analyze the second statement
**Statement:** Ozone can oxidize sulfur dioxide in the presence of atmosphere to sulfur trioxide.

- **Explanation:** This statement is true. Ozone acts as a strong oxidizing agent and can oxidize sulfur dioxide (SO2) to sulfur trioxide (SO3) in the atmosphere. The reaction can be represented as:
\[ SO_2 + O_3 \rightarrow SO_3 + O_2 \]
Thus, this statement is correct.

### Step 3: Analyze the third statement
**Statement:** The ozone hole is getting thin in the stratosphere.

- **Explanation:** This statement is also true. The thinning of the ozone layer, particularly over Antarctica, is a well-documented environmental issue. The depletion of ozone leads to increased UV radiation reaching the Earth's surface, which poses health risks. Therefore, this statement is correct.

### Step 4: Analyze the fourth statement
**Statement:** Ozone is produced in the upper stratosphere by the action of UV rays on oxygen.

- **Explanation:** This statement is true as well. Ozone is formed in the stratosphere when ultraviolet (UV) radiation splits oxygen molecules (O2) into individual oxygen atoms, which can then react with other oxygen molecules to form ozone (O3). The process can be summarized as:
\[ UV + O_2 \rightarrow 2O \quad \text{and} \quad O + O_2 \rightarrow O_3 \]
Hence, this statement is also correct.

### Conclusion
After analyzing all the statements, we find that the only wrong statement is the first one: "Ozone is not responsible for greenhouse effect."

### Final Answer
The wrong statement is: **Ozone is not responsible for greenhouse effect.**

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