Chemistry Which one of the following minerals is found in pure form? Iron Bauxite Manganese Copper Iron Bauxite Manganese Copper ANSWER DOWNLOAD EXAMIANS APP
Chemistry Wood spirit is Butyl alcohol Ethyl alcohol Propyl alcohol Methyl alcohol Butyl alcohol Ethyl alcohol Propyl alcohol Methyl alcohol ANSWER DOWNLOAD EXAMIANS APP
Chemistry The names of the scientists, Newlands, Mendeleev, and Meyer are associated with the development of periodic table of contents discovery of elements atomic structure metallurgy periodic table of contents discovery of elements atomic structure metallurgy 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 : Uninterrupted power supply (UPS) Generator Battery Power transmittor Uninterrupted power supply (UPS) Generator Battery Power transmittor ANSWER DOWNLOAD EXAMIANS APP
Chemistry What particles move around the nucleus of an atom and are negatively charged? Neutrons Positrons Electrons Protons Neutrons Positrons Electrons Protons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Concentration of a material which is lethal to 50% animal is called LD50 LC50 ADI NOAEL LD50 LC50 ADI NOAEL ANSWER DOWNLOAD EXAMIANS APP
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