Chemistry The lustre of the metals is because of High polish High density, due to closed packing of atoms Reflection of light due to the presence of free electrons Absorption of light due to the presence of cavities High polish High density, due to closed packing of atoms Reflection of light due to the presence of free electrons Absorption of light due to the presence of cavities ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following methods is used in determining the number average molar mass of a macromolecule Osmotic pressure Sedimentation equilibrium Viscosity Light scattering Osmotic pressure Sedimentation equilibrium Viscosity Light scattering ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following forms of phosphorus is most reactive? White phosphorus Violet phosphorus Black phosphorus Red phosphorus White phosphorus Violet phosphorus Black phosphorus Red phosphorus ANSWER DOWNLOAD EXAMIANS APP
Chemistry Copper is refined by Zone refining Roasting Oxidation Electrolysis Zone refining Roasting Oxidation Electrolysis ANSWER DOWNLOAD EXAMIANS APP
Chemistry White phosphorus is always kept under Benzene Ether Kerosene Water Benzene Ether Kerosene Water ANSWER DOWNLOAD EXAMIANS APP
Chemistry An electrochemical cell which is used as a source of direct electrical current at constant voltage under standard conditions is called a : Battery Generator Uninterrupted power supply (UPS) Power transmittor Battery Generator Uninterrupted power supply (UPS) Power transmittor ANSWER DOWNLOAD EXAMIANS APP
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