Chemistry The mass number of a nucleus is 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 always more than the atomic weight always less than its atomic number ANSWER DOWNLOAD EXAMIANS APP
Chemistry Physico-chemical characteristics of water in water sources undergo changes due to Aquatic macrophytes Effluents Evapotranspiration Auatic fungi Aquatic macrophytes Effluents Evapotranspiration Auatic fungi ANSWER DOWNLOAD EXAMIANS APP
Chemistry White coal is Hydro-electricity None of these Diamond Uranium Hydro-electricity None of these Diamond Uranium ANSWER DOWNLOAD EXAMIANS APP
Chemistry In which of the following states maximum iron ore is found ? Fe3O4 FeCO3 FeS2 Fe2O3 Fe3O4 FeCO3 FeS2 Fe2O3 ANSWER DOWNLOAD EXAMIANS APP
Chemistry The half life period of an isotope is 2 hours. After 6 hours what fraction of the initial quantity of the isotope will be left behind? 1/8 1/4 1/3 1/6 1/8 1/4 1/3 1/6 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is not an addition polymer Polystyrene Polythene PVC Nylon Polystyrene Polythene PVC Nylon ANSWER DOWNLOAD EXAMIANS APP
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