Chemistry The biogas used for cooking is a mixture of which of the following? Carbon dioxide and oxygen Methane and carbon monoxide Methane and carbon dioxide Isobutane and propane Carbon dioxide and oxygen Methane and carbon monoxide Methane and carbon dioxide Isobutane and propane ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a chemical reaction'? Digestion of food Burning of paper Conversion of water into steam Burning of coal Digestion of food Burning of paper Conversion of water into steam Burning of coal ANSWER DOWNLOAD EXAMIANS APP
Chemistry Pollutant from motor car exhaust that causes mental disease is Hg SO2 Lead NO2 Hg SO2 Lead NO2 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Peptization is a process of Purification of colloids Protection of colloidal solution Dispersing precipitates into colloidal solution Precipitation of colloidal particles Purification of colloids Protection of colloidal solution Dispersing precipitates into colloidal solution Precipitation of colloidal particles ANSWER DOWNLOAD EXAMIANS APP
Chemistry Galvanised iron is made by coating iron with Zinc Nickel Chromium Sulphur Zinc Nickel Chromium Sulphur ANSWER DOWNLOAD EXAMIANS APP
Chemistry The first metal used by a man was Silver Copper Brass Bronze Silver Copper Brass Bronze ANSWER DOWNLOAD EXAMIANS APP
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