Chemistry The chief constituent of natural gas is: Helium Propane Nitrogen Methane Helium Propane Nitrogen Methane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ozone layer of atmosphere absorbs: Infra-red rays Ultraviolet rays Cosmic rays. All radiations of Light Infra-red rays Ultraviolet rays Cosmic rays. All radiations of Light ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ultraviolet rays can be used in water treatment as Precipitator Disinfectant Hydrolyser Flocculator Precipitator Disinfectant Hydrolyser Flocculator ANSWER DOWNLOAD EXAMIANS APP
Chemistry The compound to which H2 does not add is Tetraphenyl ethylene Tetra – a –naphthylethylene Tetra –9 – phenanthrylethylene Biphenyl ethylene Tetraphenyl ethylene Tetra – a –naphthylethylene Tetra –9 – phenanthrylethylene Biphenyl ethylene ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following metals does not react with water to produce Hydrogen ? Potassium Lithium Sodium Cadmium Potassium Lithium Sodium Cadmium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Formic acid is produced by Cockroaches White ants Red ants Mosquitoes Cockroaches White ants Red ants Mosquitoes ANSWER DOWNLOAD EXAMIANS APP
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