Chemistry Ultraviolet radiation striking the earth is due to the depletion of Carbon dioxide Ozone Oxygen Carbon monoxide Carbon dioxide Ozone Oxygen Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ? Nitrous oxide Sulphur dioxide Carbon dioxide Chlorofluorocarbon Nitrous oxide Sulphur dioxide Carbon dioxide Chlorofluorocarbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Vulcanization of rubber is carried out by adding Sulphur Carbon Ozone Phosphorus Sulphur Carbon Ozone Phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following coal contains 90 per cent of carbon? Anthracite Bitumen Peat Lignite Anthracite Bitumen Peat Lignite ANSWER DOWNLOAD EXAMIANS APP
Chemistry The element with highest first ionisation energy is Hydrogen Lithium Sodium Helium Hydrogen Lithium Sodium Helium 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 D C A B D C A B ANSWER DOWNLOAD EXAMIANS APP
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