Chemistry The most abundant element by number in the living system is : Hydrogen Nitrogen Oxygen Carbon Hydrogen Nitrogen Oxygen Carbon ANSWER DOWNLOAD EXAMIANS APP
Chemistry Silver gets corroded due to ________ in air. Nitrogen Carbon dioxide Hydrogen Sulphide Oxygen Nitrogen Carbon dioxide Hydrogen Sulphide Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is usually not an air-pollutant? Sulphur dioxide Nitrous oxide Carbon dioxide Hydrocarbons Sulphur dioxide Nitrous oxide Carbon dioxide Hydrocarbons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is most acidic CaO Na2O Al22O3 MgO CaO Na2O Al22O3 MgO ANSWER DOWNLOAD EXAMIANS APP
Chemistry Atoms having the same number of protons but different number of neutrons are called : Cations Higgs-boson Isotopes Anions Cations Higgs-boson Isotopes Anions ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following can be found as pollutants in the drinking water in some parts of India? Select the correct answer using the code given below.(A) Arsenic (B) Sorbitol (C) Fluoride (D) Formaldehyde (E) Uranium A, C and E A and C A, B, C, D and E B, D and E A, C and E A and C A, B, C, D and E B, D and E ANSWER DOWNLOAD EXAMIANS APP
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