A. oceans
B. glaciers & icecaps
C. fresh water lakes and ponds
D. All have equal distribution
Which one of the following makes the bulk of hydrospheres content ? Read More »
Chemistry Mcqs, Environmental ChemistryA. KMnO4
B. Alums
C. Ozone
D. All
Which substance can be used for disinfecting water ? Read More »
Chemistry Mcqs, Environmental ChemistryA. chromium III
B. chromium IV
C. chromium V
D. chromium VI
The main pollutant of leather tanneries in the waste water is____________________? Read More »
Chemistry Mcqs, Environmental ChemistryA. 2
B. 3
C. 4
D. 5
Newspaper can be recycled again and again how many times ? Read More »
Chemistry Mcqs, Environmental ChemistryA. alum
B. nickel sulphate
C. copper sulphate
D. barium sulphate
In the purification of portable water the coagulant used is_________________? Read More »
Chemistry Mcqs, Environmental ChemistryA. the amount of ozone layer is greater in the region close to the equator
B. ozone acts as filter for UV radiations
C. in the equatorial region it acts as pollutant
D. CFCs play effective role in removing O3 in the stratosphere
Which statement is wrong ? Read More »
Chemistry Mcqs, Environmental ChemistryA. CFC
B. CO2
C. CO
D. Oxides of nitrogen
Which of the following air pollutants is more dangerous for ozone layer ? Read More »
Chemistry Mcqs, Environmental ChemistryA. troposphere
B. stratosphere
C. mesosphere
D. photosphere
In which of the following layer of atmosphere there is more thickness of ozone layer ? Read More »
Chemistry Mcqs, Environmental ChemistryA. sufficient NO
B. sunlight
C. less movement of air
D. winds
Which of the following is not a condition for the formation of smog ? Read More »
Chemistry Mcqs, Environmental ChemistryA. H2SO4
B. HNO3
C. both A and B
D. none
Acid present in acid rain may be__________________? Read More »
Chemistry Mcqs, Environmental Chemistry