Chemistry Which of the following is used in making smoke bombs? Hydrogen Carbon Sulphur Phosphorus Hydrogen Carbon Sulphur Phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following contributes largely to the ‘green house effect’ ? Ozone Carbon dioxide Water vapour Carbon monoxide Ozone Carbon dioxide Water vapour Carbon monoxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ionisation energy of hydrogen atom in the ground state is x KJ. The energy required for an electron to jump from 2nd orbit to 3rd orbit is 7.2 x 5x/36 5x x/6 7.2 x 5x/36 5x x/6 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron filings can be separated from a heterogenous mixture using the technique of : Sublimation Evaporation Magnetization Sedimentation Sublimation Evaporation Magnetization Sedimentation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The ore which is found in abundance in India is magnetite monazite fluorspar bauxite magnetite monazite fluorspar bauxite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is secondary air pollutant ? Photochemical smog Dust particles NO2 SO2 Photochemical smog Dust particles NO2 SO2 ANSWER DOWNLOAD EXAMIANS APP
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