Chemistry The major constituent of air is oxygen carbon dioxide nitrogen hydrogen oxygen carbon dioxide nitrogen hydrogen ANSWER DOWNLOAD EXAMIANS APP
Chemistry The electronic configuration of an atom having atomic number ‘20’ is 2, 6, 8, 4 2, 8, 10 2, 10, 8 2, 8, 8, 2 2, 6, 8, 4 2, 8, 10 2, 10, 8 2, 8, 8, 2 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 Green house effect Eutrophication None of these Smog Green house effect Eutrophication None of these Smog ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not a greenhouse gas ? Nitric oxide Carbon dioxide Hydrogen Chlorofluorocarbon Nitric oxide Carbon dioxide Hydrogen Chlorofluorocarbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is ozone depleting pesticide ? Ethylene ozonide Benzene Methyl bromide D.T. Ethylene ozonide Benzene Methyl bromide D.T. 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
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