Chemistry Ozone layer of atmosphere absorbs: Infra-red rays Cosmic rays. All radiations of Light Ultraviolet rays Infra-red rays Cosmic rays. All radiations of Light Ultraviolet rays ANSWER DOWNLOAD EXAMIANS APP
Chemistry Oxygen which is vital for life is a product of photosynthesis and comes from Carbon dioxide Oxides of mineral elements Carbonates from soil Water Carbon dioxide Oxides of mineral elements Carbonates from soil Water ANSWER DOWNLOAD EXAMIANS APP
Chemistry Total number of elements in the Periodic table 118 115 112 127 118 115 112 127 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Mark the compound which possess ionic, covalent and coordinate bonds. SO3 H2O SO2 NH4Cl SO3 H2O SO2 NH4Cl ANSWER DOWNLOAD EXAMIANS APP
Chemistry Pollutant from motor car exhaust that causes mental disease is Lead NO2 Hg SO2 Lead NO2 Hg SO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following compounds is commonly used as an antiseptic in mouthwashes and toothpastes ? Hydrogen peroxide Saltpetre Sodium chloride Borax Hydrogen peroxide Saltpetre Sodium chloride Borax ANSWER DOWNLOAD EXAMIANS APP
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