Question

Ozone o3 is a- an allotropic form of oxygen b- too reactive to remain for long in the atmosphere at sea level c- formed from atmospheric oxygen in the presence of sunlight at a height of about 20 km d- all the above statements are correct​

Answer 1

Answer:

Oxygen and ozone are common allotropes. Triatomic oxygen is the highly reactive form of oxygen and it is present in the form of ozone layer in stratosphere. Diatomic oxygen is the most common form and known as oxygen.

Answer 2

All the statements given in the option are true. So, the answer of the question is option (d) i.e. all the statements are correct.

What is Ozone ?

Ozone is a colorless reactive gas made of three atoms of oxygen and is found in stratosphere to absorb harmful ultraviolet radiations from the sun.

To make it more clear, we will discuss in brief how all these statements are correct:

• Allotropy means existence of element in two or more forms in same physical state and ozone is made of three oxygen atoms. That is why Ozone is an allotropy of oxygen.

• Ozone is produced by recombination of oxygen atoms when oxygen molecules breakdown by UV rays and these chemical processes regulated the ozone level to remain for long at sea level.

• Ozone is formed from the oxygen in the atmosphere at 20km of height in the presence of sunlight.