Chemistry Solder metal is an alloy of Copper and tin Lead and tin Copper and zinc Lead and antimony Copper and tin Lead and tin Copper and zinc Lead and antimony ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which halide is used in making sensitive emulsion on photograhic film? Silver bromide Sodium chloride Silver iodide Silver chloride Silver bromide Sodium chloride Silver iodide Silver chloride ANSWER DOWNLOAD EXAMIANS APP
Chemistry What particles move around the nucleus of an atom and are negatively charged? Positrons Electrons Neutrons Protons Positrons Electrons Neutrons Protons ANSWER DOWNLOAD EXAMIANS APP
Chemistry The chief constituent of natural gas is: Nitrogen Propane Methane Helium Nitrogen Propane Methane Helium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Bone ash contains Calcium hypophosphate Calcium sulphate Calcium phosphate Phosphoric sulphate Calcium hypophosphate Calcium sulphate Calcium phosphate Phosphoric sulphate ANSWER DOWNLOAD EXAMIANS APP
Chemistry Heating of a ore below its melting point in the absence of air is known as Refining Smelting Roasting Calcination Refining Smelting Roasting Calcination ANSWER DOWNLOAD EXAMIANS APP
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