Chemistry What is the element that is in the highest percentage in the composition of the earth ? Oxygen Magnesium Silicon Iron Oxygen Magnesium Silicon Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry The high reactivity of fluorine is due to small size of fluorine atom its high electro negativity strong F - F bond availability of d-orbitals small size of fluorine atom its high electro negativity strong F - F bond availability of d-orbitals ANSWER DOWNLOAD EXAMIANS APP
Chemistry White lung cancer' is caused by Paper Silica Asbestos Textiles Paper Silica Asbestos Textiles ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is commonly used for pulp bleaching in the paper industry? Iodine and water Mild sulphuric acid Hydrogen peroxide Glucose isomerase Iodine and water Mild sulphuric acid Hydrogen peroxide Glucose isomerase ANSWER DOWNLOAD EXAMIANS APP
Chemistry The substance that is added to make natural rubber strong and more bouncy is Chlorine Polythene Sulphur Sponge Chlorine Polythene Sulphur Sponge ANSWER DOWNLOAD EXAMIANS APP
Chemistry The lustre of the metals is because of High polish Reflection of light due to the presence of free electrons High density, due to closed packing of atoms Absorption of light due to the presence of cavities High polish Reflection of light due to the presence of free electrons High density, due to closed packing of atoms Absorption of light due to the presence of cavities ANSWER DOWNLOAD EXAMIANS APP
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