Question

What is the formula of Ozone?
1. O₃
2. O₂
3. O
4. O₄

Answer 1

Correct Answer - Option 1 : O₃

The correct answer is O₃.

• Ozone is a gas that is naturally present in our atmosphere. Each ozone molecule contains three atoms of oxygen and is denoted chemically as O₃.

• A molecule of ozone (O₃) contains three oxygen (O) atoms bound together.
  • Oxygen molecules (O₂), which constitute 21% of the gases in Earth's atmosphere, contain two oxygen atoms bound together.

• Stratospheric ozone is considered good for humans and other life forms because it absorbs ultra-violet (UV)-B radiation from the Sun.
  • If not absorbed, UV-B would reach Earth's surface in amounts that are harmful to a variety of life forms.
• Ozone or “O₃” is a colourless gas composed of three atoms of oxygen (O₃).
  • There are two types of ozone, both “good” ozone, and “bad” ozone.
• Most atmospheric ozone is concentrated in a layer in the stratosphere, about 9 to 18 miles (15 to 30 km) above the Earth's surface (see the figure below). Ozone is a molecule that contains three oxygen atoms.
• Tropospheric ozone (often termed "bad" ozone) is man-made, a result of air pollution from internal combustion engines and power plants.
  • Automobile exhaust and industrial emissions release a family of nitrogen oxide gases (NOx) and volatile organic compounds (VOC), by-products of burning gasoline and coal.