What is PAN? What effect is caused by it?

Important Questions on Environmental Chemistry

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 12 - Environmental Chemistry>QUESTIONS>Q 16

How is ozone formed in the stratosphere?

HARD

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 12 - Environmental Chemistry>QUESTIONS>Q 17

Give the chemical equations involved in the ozone layer depletion by ${\mathrm{CF}}_2{\mathrm{Cl}}_2$.

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 12 - Environmental Chemistry>QUESTIONS>Q 18

What is ozone hole? Where was it first observed?

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 12 - Environmental Chemistry>QUESTIONS>Q 19

What is the value of dissolved oxygen in pure cooled water?

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 12 - Environmental Chemistry>QUESTIONS>Q 20

Give the possible BOD values of the clean water and the polluted water.

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 12 - Environmental Chemistry>QUESTIONS>Q 21

Name three industrial chemicals that pollute water.

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 12 - Environmental Chemistry>QUESTIONS>Q 22

What agrochemicals are responsible for water pollution?

MEDIUM

11th Telangana Board

IMPORTANT

Intermediate First Year Chemistry>Chapter 12 - Environmental Chemistry>QUESTIONS>Q 23

What are the different segments of the earth's environment?