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Chemistry

Chemistry
An example of major air pollutant is

Carbon dioxide
Carbon monoxide
Oxygen
Helium

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Chemistry
Depletion of ozone layer causes

Skin cancer
Breast cancer
Blood cancer
Lung cancer

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Chemistry
Match the List-I with List-II and select the correct answer using the codes given below the listsList-I (Green house gas)List-II(Major source)F.Carbondioxide1.Enteric fermentation in cattleG.Methane2.Burning of fossilH.Chloroflro carbons3.Mercury compounds in waste waterJ.Nitrous oxide4.Nylon production 5.Air conditioner and refrigeration unitsCodes :FGHJA.2154B.3421C.3241D.1234

C
D
A
B

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Chemistry
The main chemical constituent of clay is

aluminium silicate
silicon oxide
zeolites
aluminium borosilicate

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Chemistry
Aerated water contains

NO2
H2
CO2
SO2

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Chemistry
Which of the following metals is not a pollutant ?

Mercury
Arsenic
Lead
Aluminium

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MORE MCQ ON Chemistry

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