Chemistry The first metal used by man was copper iron bronze gold copper iron bronze gold 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? 1/4 1/3 1/8 1/6 1/4 1/3 1/8 1/6 ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following does the Nucleus of an atom consist of? Electrons Protons Protons and neutrons Protons and electrons Electrons Protons Protons and neutrons Protons and electrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Photo-oxidation process is initiated by Heat Light Catalyst Oxygen Heat Light Catalyst Oxygen ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which of the following is used in dating archaeological findings ? 13H 818O 614C 92235U 13H 818O 614C 92235U ANSWER DOWNLOAD EXAMIANS APP
Chemistry White phosphorus is always kept under Water Kerosene Benzene Ether Water Kerosene Benzene Ether ANSWER DOWNLOAD EXAMIANS APP
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