Chemistry Which of the following metals occurs in free state ? Lead Copper Zinc Iron Lead Copper Zinc Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Sea weeds are important source of Iodine Iron Bromine Chlorine Iodine Iron Bromine Chlorine ANSWER DOWNLOAD EXAMIANS APP
Chemistry High concentration hydrocarbon pollutants in atmospheric air causes Reduced crop yield Cancer Respiratory diseases (e.g.asthma) Silicosis Reduced crop yield Cancer Respiratory diseases (e.g.asthma) Silicosis ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is commonly used for pulp bleaching in the paper industry? Glucose isomerase Iodine and water Mild sulphuric acid Hydrogen peroxide Glucose isomerase Iodine and water Mild sulphuric acid Hydrogen peroxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry In chemical terms, what are alums used for purifying water for drinking purposes ? Double sulphates Double nitrate Nitrates of aluminium Hydrated chlorides Double sulphates Double nitrate Nitrates of aluminium Hydrated chlorides ANSWER DOWNLOAD EXAMIANS APP
Chemistry ‘Aerosol’ is known as Suspended solid particles in air Microbes, present in air Pollutant gas, present in air Green house gas present in air Suspended solid particles in air Microbes, present in air Pollutant gas, present in air Green house gas present in air ANSWER DOWNLOAD EXAMIANS APP
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