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Chemistry

Chemistry
Major gaseous pollutant of the thermal power station is

SO2
NH3
NO2
H2 S

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Chemistry
Which of the following is used to iodise common salt ?

Potassium iodide
Sodium iodide
Potassium iodate
Iodine

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Chemistry
The number of moles of solute present in 1 kg of a solvent is called its

molarity
normality
formality
molality

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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

A
B
D
C

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Chemistry
Asbestos is formed of :

Calcium and Magnesium
Calcium and Zinc
Lead and Iron
Copper, Zinc and Manganese

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Chemistry
The percentage of carbon in cost iron is :

0.01 to 0.25
6 to 8
3 to 5
0.5 to 1.5

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