Chemistry Catalytic converters are generally made from : Alkaline metals Hydrogen Transition metals Carbon Alkaline metals Hydrogen Transition metals Carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Browning of paper in old books is caused by Frequent use Lack of aeration Oxidation of cellulose Collection of dust Frequent use Lack of aeration Oxidation of cellulose Collection of dust ANSWER DOWNLOAD EXAMIANS APP
Chemistry Highest percentage of carbon is found in which form of coal? Anthracite Bituminous Lignite Peat Anthracite Bituminous Lignite Peat ANSWER DOWNLOAD EXAMIANS APP
Chemistry A powerful eye irritant present in smog is Peroxyacetyl nitrate Sulphur dioxide Nitric oxide Carbon dioxide Peroxyacetyl nitrate Sulphur dioxide Nitric oxide Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
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 B D A C B D A ANSWER DOWNLOAD EXAMIANS APP
Chemistry Name two elements that find wide application in transistor industry Carbon and Platinum Silicon and Germanium Tungsten and Platinum Iridium and Germanium Carbon and Platinum Silicon and Germanium Tungsten and Platinum Iridium and Germanium ANSWER DOWNLOAD EXAMIANS APP
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