Chemistry The buffer action of blood is due to the presence of [HCO3]– and H2CO3 HCI and NaCI CI– and [CO3]2– CI– and [HCO3]– [HCO3]– and H2CO3 HCI and NaCI CI– and [CO3]2– CI– and [HCO3]– ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following elements is found in all organic compounds Nitrogen Carbon Oxygen Calcium Nitrogen Carbon Oxygen Calcium ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following elements is used in the manufacture of safety matches? Silicon Sodium Phosphorus Graphite Silicon Sodium Phosphorus Graphite ANSWER DOWNLOAD EXAMIANS APP
Chemistry When a nutrient like fertilizer is present in large quantities in a water bodies, plants grow and decay in large numbers because of suffocating of pond that does not leave enough oxygen needed to support life. This type of pollution is called Smog Eutrophication Green house effect None of these Smog Eutrophication Green house effect None of these ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is commonly used for pulp bleaching in the paper industry? Iodine and water Glucose isomerase Hydrogen peroxide Mild sulphuric acid Iodine and water Glucose isomerase Hydrogen peroxide Mild sulphuric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry KMnO4 can be used as Fertilizer Insecticide Pesticide Disinfectant Fertilizer Insecticide Pesticide Disinfectant ANSWER DOWNLOAD EXAMIANS APP
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