Chemistry Which of the following elements is found in all organic compounds Oxygen Nitrogen Carbon Calcium Oxygen Nitrogen Carbon Calcium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Chemical name of bleaching powder is : Calcium chlorate Calcium hypochlorite Calcium bi chloride Calcium chloro hypochlorite Calcium chlorate Calcium hypochlorite Calcium bi chloride Calcium chloro hypochlorite ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used as a preservative to protect processed food? Sodium sulphate BHT Sodium metabisulphite Saccharin Sodium sulphate BHT Sodium metabisulphite Saccharin ANSWER DOWNLOAD EXAMIANS APP
Chemistry Alcoholic (– OH) group can be identified by : FeCl3Test Esterification Test Ozonolysis Reaction Tollen's Reagent Test FeCl3Test Esterification Test Ozonolysis Reaction Tollen's Reagent Test ANSWER DOWNLOAD EXAMIANS APP
Chemistry High concentration hydrocarbon pollutants in atmospheric air causes Reduced crop yield Cancer Silicosis Respiratory diseases (e.g.asthma) Reduced crop yield Cancer Silicosis Respiratory diseases (e.g.asthma) ANSWER DOWNLOAD EXAMIANS APP
Chemistry Who is known as the 'father of modern chemistry' John Dalton Democritus Robert Boyle Antoine Lavoisier John Dalton Democritus Robert Boyle Antoine Lavoisier ANSWER DOWNLOAD EXAMIANS APP