NCERT Class11 Chemistry Environmental Chemistry MCQs,PDFs,mock tests

Environmental Chemistry Mock Test-1

Question No:1

Pollution is

[A] removal of top soil
[B] release of toxic/undesirable materials in environment
[C] conservation of energy
[D] All of the above



Question No:2

SO2 gas is poisonous to

[A] Animals
[B] PIanus
[C] Both (a) and (b)
[D] Neither (a) nor (b)



Question No:3

Petroleum resource is

[A] renewable
[B] non renewable
[C] synthetic and biodegradable
[D] infinite and unconventional



Question No:4

Which will not cause any atmospheric pollution?

[A] Hydrogen
[B] SO2
[C] CO2
[D] CO



Question No:5

Biosphere refers to

[A] plants of the world
[B] special plants
[C] area occupied by living beings
[D] plants of a particular area



Question No:6

When biosphere turns into hum an dominated environment it is called

[A] Noosphere.
[B] Troposphere,
[C] Mesosphere.
[D] Manosphere.



Question No:7

Gas released during Bhopal Gas Tragedy was

[A] methyl isocyanate
[B] potassium isothiocyanate
[C] sodium isothiocyanate
[D] ethyl Isothiocyanate



Question No:8

Which one of the following is not a common component of photochemical smog?

[A] Ozone
[B] Acrolein
[C] Peroxyacetyl nitrate
[D] Chlorofluorocarbons



Question No:9

Which one of the following is responsible for depletion of the ozone layer in the upper strata of the atmosphere?

[A] Polyhalogens
[B] Ferrocene
[C] Fullerenes
[D] Freons



Question No:10

The gas emitted by supersonic jet planes that slowly depletes the concentration of ozone layer is

[A] CO
[B] NO
[C] SO2
[D] O2



Question No:11

The greenhouse effect is caused by

[A] CO2
[B] NO2
[C] NO
[D] CO



Question No:12

Acid rain is due to

[A] CH3
[B] N2O5
[C] SO2 and NO2
[D] None of these



Question No:13

The pH of normal rainwater is

[A] 6.5
[B] 7.5
[C] 5.6
[D] 3.5



Question No:14

The greenhouse gas is

[A] CO2
[B] SO2
[C] N2
[D] H2S



Question No:15

Which of the following gases is NOT a greenhouse gas?

[A] CO
[B] O3
[C] CH4
[D] H2O vapour