Chemistry What is the element that is in the highest percentage in the composition of the earth ? Silicon Magnesium Iron Oxygen Silicon Magnesium Iron Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Vulcanized rubber contains sulphur 3-5% 0.02 10-15% 7-9% 3-5% 0.02 10-15% 7-9% ANSWER DOWNLOAD EXAMIANS APP
Chemistry Depletion of ozone layer causes Blood cancer Lung cancer Skin cancer Breast cancer Blood cancer Lung cancer Skin cancer Breast cancer ANSWER DOWNLOAD EXAMIANS APP
Chemistry The antiparticle of an electron is Positron Alpha particles Beta particles Proton Positron Alpha particles Beta particles Proton ANSWER DOWNLOAD EXAMIANS APP
Chemistry How many electrons in a Hydrogen atom Two Four One Three Two Four One Three ANSWER DOWNLOAD EXAMIANS APP
Chemistry Ionisation energy of nitrogen is greater than that of oxygen because nitrogen has High bond dissociation energy Smaller atomic radius Stable half filled 2p sub level High nuclear charge High bond dissociation energy Smaller atomic radius Stable half filled 2p sub level High nuclear charge ANSWER DOWNLOAD EXAMIANS APP
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