Chemistry What is the mass percentage of oxygen in carbon dioxide (CO2) 0.658 0.305 0.727 0.509 0.658 0.305 0.727 0.509 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The advantage of detergents over soaps is Soaps give lather with only soft water Detergents are soluble in water Detergents could not give much lather Detergents give lather even with hard water Soaps give lather with only soft water Detergents are soluble in water Detergents could not give much lather Detergents give lather even with hard water ANSWER DOWNLOAD EXAMIANS APP
Chemistry What is 'milk of magnesia' chemically? Magnesium carbonate Magnesium hydroxide Sodium bicarbonate Calcium hydroxide Magnesium carbonate Magnesium hydroxide Sodium bicarbonate Calcium hydroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The function of skimming tank in sewage treatment is to remove Inorganic substances Gritty substances Oil and fatty substances Suspended solids Inorganic substances Gritty substances Oil and fatty substances Suspended solids ANSWER DOWNLOAD EXAMIANS APP
Chemistry An example of replenishable energy source is– Biomass Coal Petroleum Lignite Biomass Coal Petroleum Lignite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Galvanization of iron is carried out using Zinc Copper Chromium Tin Zinc Copper Chromium Tin ANSWER DOWNLOAD EXAMIANS APP
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