Chemistry The first metal used by man was copper gold iron bronze copper gold iron bronze ANSWER DOWNLOAD EXAMIANS APP
Chemistry Non-stick kitchenwares are coated with Teflon PVC Graphite Silicon Teflon PVC Graphite Silicon ANSWER DOWNLOAD EXAMIANS APP
Chemistry The “King of Metals” is : Silver Aluminium Iron Gold Silver Aluminium Iron Gold ANSWER DOWNLOAD EXAMIANS APP
Chemistry Which one of the following is a greenhouse gas ? Nitrogen Carbon dioxide Helium Sulphur dioxide Nitrogen Carbon dioxide Helium Sulphur dioxide ANSWER DOWNLOAD EXAMIANS APP
Chemistry The nucleus of an atom consists of electrons and protons All of these protons and neutrons electrons and neutrons electrons and protons All of these protons and neutrons electrons and neutrons ANSWER DOWNLOAD EXAMIANS APP
Chemistry Adding Cl2 to benzene in the presence of AlCl3 is an example of : None of the options Elimination reaction Addition reaction Substitution reaction None of the options Elimination reaction Addition reaction Substitution reaction ANSWER DOWNLOAD EXAMIANS APP
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