Chemistry Brown stains in vessels and clothes indicate the presence of high quantities of ________ in water Calcium Magnesium None of these Manganese Calcium Magnesium None of these Manganese ANSWER DOWNLOAD EXAMIANS APP
Chemistry Limestone is a raw material used by which industry? Fertilizers Petrochemicals Aluminium Cement Fertilizers Petrochemicals Aluminium Cement ANSWER DOWNLOAD EXAMIANS APP
Chemistry Glycol is used to manufacture which of the following ? Rubber Terylene Nylon Artificial silk Rubber Terylene Nylon Artificial silk ANSWER DOWNLOAD EXAMIANS APP
Chemistry Synthetic detergents are prepared from Sodium salts of higher fattyacids Potassium salts of higher fatty-acids Hydrocarbons of petroleum Glycerides Sodium salts of higher fattyacids Potassium salts of higher fatty-acids Hydrocarbons of petroleum Glycerides ANSWER DOWNLOAD EXAMIANS APP
Chemistry Natural rubber is the polymer of : Styrene Isoprene Butadiene Ethylene Styrene Isoprene Butadiene Ethylene ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following causes the rusting of iron? a. Oxidation b. Reduction c. Chemical reaction with oxygend. Chemical reaction with CO2 A and c A and b B and c C and d A and c A and b B and c C and d ANSWER DOWNLOAD EXAMIANS APP
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