Chemistry The electronic configuration of an atom having atomic number ‘20’ is 2, 10, 8 2, 8, 8, 2 2, 6, 8, 4 2, 8, 10 2, 10, 8 2, 8, 8, 2 2, 6, 8, 4 2, 8, 10 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Iron filings can be separated from a heterogenous mixture using the technique of : Magnetization Sublimation Evaporation Sedimentation Magnetization Sublimation Evaporation Sedimentation ANSWER DOWNLOAD EXAMIANS APP
Chemistry The depletion in Ozone layer is caused by ________ . Methane Nitrous oxide Chlorofluorocarbons Carbon dioxide Methane Nitrous oxide Chlorofluorocarbons Carbon dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry Interveinal necrotic spots on leaves appear due to HF injury SO2injury O3injury NO2injury HF injury SO2injury O3injury NO2injury ANSWER DOWNLOAD EXAMIANS APP
Chemistry Rutherford’s scattering experiment proved the presence of Electrons in atoms Atoms in all matter Neutrons in atoms Nucleus in atoms Electrons in atoms Atoms in all matter Neutrons in atoms Nucleus in atoms ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is the element that is in the highest percentage in the composition of the earth ? Silicon Iron Oxygen Magnesium Silicon Iron Oxygen Magnesium ANSWER DOWNLOAD EXAMIANS APP
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