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Chemistry

Chemistry
Which of the following is a secondary pollutant ?

PAN
NO
SO2
CO

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Chemistry
Taj Mahal is greatly affected due to :

Acid rain
Sound pollution
Deforestation
Tourists

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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

B
C
D
A

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Chemistry
Malathion is a/an

Pesticide
Insecticide
Fumigant
Preservative

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Chemistry
Chemically ‘Quick Silver is known as

Copper
Silver
Mercury
Aluminium

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Chemistry
Gunpowder consits of a mixture of

Nitre, sulphur and charcoal
TNT and charcoal
Sulphur, sand and charcoal
Sand and TNT

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