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Chemistry

Chemistry
Chemical name of Gammaxane is

Benzene hexachloride
Chloro benzene
Aniline
Toluene

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Chemistry
The structure of NaCl crystal is

Octahedral
Square planar
Face centered cubic
Body centered cubic

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Chemistry
The most extensive, commercially useful source of thorium as monazite sand occurs in India at

West Bengal coast
Gujarat coast
Orissa coast
Travancore coast

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Chemistry
The main constituent of biogas is

Methyl alcohol
Methane
Acetic acid
Oxygen

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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

D
A
C
B

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Chemistry
The percentage of carbon in cost iron is :

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

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