Chemistry Magnetite is Fe2O3 Fe3O4 2Fe2O3. 3H2O FeCO3 Fe2O3 Fe3O4 2Fe2O3. 3H2O FeCO3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is a commercial source of energy? Sun Natural gas Dried dung Agricultural waste Sun Natural gas Dried dung Agricultural waste ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which among the following is pure matter ? Air Brass Carbon–dioxide Iron Air Brass Carbon–dioxide Iron ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which acid is used in Lead storage battery? Nitric acid Sulphuric acid Hydrochloric acid Acetic acid Nitric acid Sulphuric acid Hydrochloric acid Acetic acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following acids serves as an electrolyte in a lead storage battery? Sulphuric acid Nitric acid Lactic acid Hydrochloric acid Sulphuric acid Nitric acid Lactic acid Hydrochloric acid ANSWER DOWNLOAD EXAMIANS APP
Chemistry The mass number of a nucleus is always more than the atomic weight always less than its atomic number the sum of the number of protons and neutrons present in the nucleus a fraction always more than the atomic weight always less than its atomic number the sum of the number of protons and neutrons present in the nucleus a fraction ANSWER DOWNLOAD EXAMIANS APP
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