environmental chemistry - Category wise Question and Answer Practice Test with Solutions

Question : 31

Which of the following statements is wrong?

a) Ozone can oxidise sulphur dioxide present in the atmosphere to sulphur trioxide.

b) Ozone hole is thinning of ozone layer present in stratosphere.

c) Ozone is not responsible for green house effect.

d) Ozone is produced in upper stratosphere by the action of UV rays on oxygen.

Question : 32

Water is often treated with chlorine to

a) increase oxygen content

b) kill germs

c) remove hardness

d) remove suspended particles