The P Block Elements - Result Question 51
####52. About $20 km$ above the earth, there is an ozone layer. Which one of the following statements about ozone and ozone layer is true?
[1995]
(a) ozone has a triatomic linear molecule
(b) it is harmful as it stops useful radiation
(c) it is beneficial to us as it stops U.V radiation
(d) conversion of $O_3$ to $O_2$ is an endothermic reaction
Show Answer
Solution:
- (c) Ozone layer is beneficial to us, because it stops harmful ultraviolet radiations to reach the earth.
