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Ultraviolet radiations from sunlight cau...

Ultraviolet radiations from sunlight causes a reaction that produces:

A

`O_(3)`

B

`SO_(2)`

C

CO

D

`CH_(4)`

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The correct Answer is:
**Step-by-Step Solution:** 1. **Understanding Ultraviolet Radiation**: Ultraviolet (UV) radiation is a type of electromagnetic radiation that comes from the sun. It has enough energy to cause chemical reactions in certain substances. 2. **Location of Reaction**: The reaction involving UV radiation primarily occurs in the stratosphere, which is the second layer of Earth's atmosphere, situated above the troposphere. 3. **Photochemical Splitting of Oxygen**: When UV radiation reaches the stratosphere, it causes the photochemical splitting of oxygen molecules (O2). This means that UV light breaks the bonds between the oxygen atoms in the O2 molecules. 4. **Formation of Nascent Oxygen**: The splitting of O2 produces nascent oxygen (O), which is highly reactive. This nascent oxygen can readily combine with other oxygen molecules. 5. **Formation of Ozone**: The nascent oxygen reacts with another O2 molecule to form ozone (O3). Ozone is a triatomic molecule consisting of three oxygen atoms. 6. **Conclusion**: Therefore, the reaction caused by ultraviolet radiation results in the production of ozone (O3) in the stratosphere. **Final Answer**: Ultraviolet radiations from sunlight cause a reaction that produces ozone (O3). ---
**Step-by-Step Solution:** 1. **Understanding Ultraviolet Radiation**: Ultraviolet (UV) radiation is a type of electromagnetic radiation that comes from the sun. It has enough energy to cause chemical reactions in certain substances. 2. **Location of Reaction**: The reaction involving UV radiation primarily occurs in the stratosphere, which is the second layer of Earth's atmosphere, situated above the troposphere. 3. **Photochemical Splitting of Oxygen**: When UV radiation reaches the stratosphere, it causes the photochemical splitting of oxygen molecules (O2). This means that UV light breaks the bonds between the oxygen atoms in the O2 molecules. ...
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