General Science The major ingredient of leather is: Collagen Carbohydrate Polymer Nucleic acid Collagen Carbohydrate Polymer Nucleic acid ANSWER DOWNLOAD EXAMIANS APP
General Science Which metal pollute the air of a big city? Copper Cadmium Lead Chromium Copper Cadmium Lead Chromium ANSWER DOWNLOAD EXAMIANS APP
General Science The filament of an electric bulb is made of Graphite Iron Nichrome Tungsten Graphite Iron Nichrome Tungsten ANSWER DOWNLOAD EXAMIANS APP
General Science The inert gas which is substituted for nitrogen in the air used by deep sea divers for breathing, is Argon Xenon Helium Krypton Argon Xenon Helium Krypton ANSWER DOWNLOAD EXAMIANS APP
General Science Potassium nitrate is used in Medicine Salt Glass Fertilizer Medicine Salt Glass Fertilizer ANSWER DOWNLOAD EXAMIANS APP
General Science Sodium metal is kept under Kerosene Petrol Water Alcohol Kerosene Petrol Water Alcohol ANSWER DOWNLOAD EXAMIANS APP
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