MEDIUM
11th CBSE
IMPORTANT
Earn 100

Formation of London smog is initiated by a mixture of _____, _____ and _____ and is formed in the _____ season.

Important Questions on Environmental Chemistry

MEDIUM
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 14 - Environmental Chemistry>TEST YOUR GRIP>Q 16
Photochemical smog was first observed in _____ (city) and is formed from _____ and _____ in _____ season.
MEDIUM
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 14 - Environmental Chemistry>TEST YOUR GRIP>Q 17
PAN present in the photochemical smog stands for _____.(Peroxyacyl nitrate/Peroxyacetic nitrile)
MEDIUM
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 14 - Environmental Chemistry>TEST YOUR GRIP>Q 19
Acid rain contains _____ and _____ and has a pH of _____.
MEDIUM
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 14 - Environmental Chemistry>TEST YOUR GRIP>Q 20
In order of decreasing contribution to the green house effect, the three main gases are _____, ______, and _____.
MEDIUM
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 14 - Environmental Chemistry>TEST YOUR GRIP>Q 21
The total amount of oxygen consumed by microorganisms in decomposing the waste present in a certain volume of sample of water is called _____ of water.
HARD
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 14 - Environmental Chemistry>TEST YOUR GRIP>Q 22
The amount of oxygen consumed by pollutants in water found by titration with acidified K2Cr2O7 is called _____ of water.
HARD
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 14 - Environmental Chemistry>TEST YOUR GRIP>Q 23
The inflow of nutrients from fertilizers into lakes resulting in the increase of phosphate in lake water and depletion of dissolved oxygen causing the fish to die is called _____.
MEDIUM
11th CBSE
IMPORTANT
Pradeep's New Course CHEMISTRY Vol.II>Chapter 14 - Environmental Chemistry>TEST YOUR GRIP>Q 24
According to international standards of drinking water, the tolerable limit for fluoride ions in water is _____.