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Chemistry

Chemistry
The hardest form of carbon is

coke
graphite
charcoal
diamond

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Chemistry
This group of alumino-silicate minerals is widely used in making electrical insulators

Mica
Bauxite
Manganese
Chromite

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Chemistry
Sea weeds are important source of

Iodine
Iron
Chlorine
Bromine

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Chemistry
One of the constituents of tear gas is

Chloropicrin
Ethanol
Ethane
Ether

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Chemistry
Which of the following is an iron ore ?

Lignite
Bauxite
Nitrite
Magnetite

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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
A
B
D

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